I had been following the yellowish-green markers for a “popular and easy” three-mile out-and-back hike. Immediately after the trailhead(山道的起点), the trail became very rocky and steep. But having read information about the hike, I knew within five minutes, I was supposed to reach the hike's first overlook.

    However, the overlook never arrived. Instead, I found myself lost in the woods. Pulling out my cellphone, I saw it read “no service”. I checked the last text message I'd sent to my mom. It read, “Conference ended…going for a small hike before my flight home this afternoon.” I put my phone away and kept moving and yelling, “Help! Is anybody out there?” Every so often, I'd stop to listen, but I never heard a reply.

    I got out my phone again. The battery was running out fast as it searched for a signal. I struggled to find a place where I could get service. When I did, I called my mom. It went through! In a shaky voice, I said, “Mom?” And then the call dropped. More than 1,500 miles away, my mom instantly knew something was wrong. She called the Denver Police Department and was directed to the US Forest Service.

    This was how I was introduced to John, an operator from the US Forest Service. Following John's instruction on the phone, I finally escaped from the woods. I breathed a sigh of relief. Then my phone rang, and it was John, making sure I was still going in the right direction. “By the way,” he said, “we've had your mother on hold this whole time. We know once you get down the mountain, you will absolutely want to give her a call.”

    Every people uses its own special word to show its ideas and feelings. Some of these expressions（表达，说法） are commonly used for many years. Others are popular for just a short time. One such American expression is “Where's the beef?” It is used when something is not as good as it is said to be. In the early 1980s “Where's the beef?” was one of the most popular expressions in the United States. It seemed as if everyone using it at the time.

    Beef, of course, is the meat from a cow, and food is more popular in America than a hamburger made from beef. In the 1960s a businessman named Ray began building small restaurants that sold hamburgers at a low price. Ray called this “McDonald's”. Ray became one of the richest businessmen at last in America.

    Other business people watched his success. Some of them opened their own hamburger restaurants. One company called “Wendy's” said its hamburgers were bigger than those sold by McDonald's or anyone else. The Wendy's Company began to use the expression “Where's the beef?” to make people know that Wendy's hamburgers were the biggest. The Wendy's television advertisement showed three old women eating hamburgers. The bread that covered the meat was very big, but inside there was only a bit of meat. One of the women said she would not eat a hamburger with such a little piece of beef. “Where's the beef?” she shouted in a funny way. The advertisement for Wendy's hamburger restaurants was success. As we said, it seemed everyone began using the expression “Where's the beef?”.

    When I was young I wanted to be a model,so when a national contest was staged,I convinced my parents to have a try.I was selected and told that I was talented and that for only $900 I could attend a weekend event which dozens of the most famous modeling agencies from around the world would attend.At 13,my hopes of fame and fortune clouded all judgment and I begged my parents to let me go.We have never been rich,but they saw my enthusiasm and agreed.

    I imagined being signed by some famous model companies.For months,any boredom or disappointment I faced was pushed aside because I knew I would soon have the chance to be a real model.I thought I would grace the covers of famous magazines!

    Of course,I wasn't signed,but what hurt the most was being told that if I grew to about 1.75metres I could be a success.I prayed for a growth spurt（冲刺）because I could not imagine giving up my dream.I made an appointment with a local modeling agency and the agent demanded $500 for classes,$500 for a photo shoot,and $300 for other expenses.My parents only agreed after hours and hours of my begging.

    The agency sent me out on a few auditions,but with every clay I didn't receive a call,I grew more depressed.The final straw came in July after I had decided to focus on commercial modeling.There was an open call in New York City.We spent hours driving and another few hours waiting,only to be told that I was too short.I was depressed.

    Years later,I realized that the trip to New York was good as it made me notice I didn't actually love modeling, just the idea of it.I wanted to be special and I was innocently determined to reach an impossible goal.The experience has made me stronger and that will help me in the future.

    About three decades ago, China was known as the "Bicycle Kingdom". But later on, bikes were replaced by their fuel-powered competitors.

    But recent months have seen a recovery of the humble bike across China, with an increasing number of people choosing cycling instead of driving to schools, to workplaces or to do sightseeing. The introduction of bike-sharing schemes, pioneered by start-ups like Ofo and Mobike, has brought the trend to a new level.

    People can unlock the shared bikes by simply using their smartphone. The bikes are equipped with GPS and can be left anywhere in public for the next user. They're popular among many Chinese people as they provide an effective solution to the "last mile" problem, which refers to the final leg of a person's journey.

    " In places where the subway doesn't extend, where it's difficult to change from one kind of transport to another, it's so easy to get where you want to go with Mobike," Hu Hong,29,told AFP. She pedals(骑车)to her Shanghai real-estate job.

    However, the schemes have also led to problems such as illegal parking, vandalism(故意毁坏) and theft. Last month, two nurses in Beijing were placed under administrative punishment for five days for putting locks on two shared bikes. And in December, a man who stole a shared bike was sentenced to a 3-month detention(拘留),and fined 1 ,000 yuan by the Shanghai Minhang People's Court.

    " Bike-sharing is a greener method of transportation and provides a user-friendly experience,"said Liu Xiaoming, vice-minister of transport.

    " But it's a combination of online and offline business. Operators are usually strong in online services, but lack offline business experience, which causes problems."

    Now, Chinese service operators are trying to solve the problems. For example, a bike- sharing company called Mobike sets a 100-point credit score for each user, with points taken in the case of bad behavior. Once a score drops below 80, bike rental is increased to 100 yuan per 30 minutes, up from 0.5 - 1 yuan.

    "Opinion" is a word that is used carelessly today. It is used to refer to matters of taste, belief, and judgment. This inaccurate use would probably cause little confusion if people didn't attach too much importance to opinion. Unfortunately, most attach great importance to it. "I have as much right to my opinion as you to yours,'' and "Everyone's entitled to his opinion,'' are common expressions. In fact, anyone who would challenge another's opinion is likely to be branded intolerant.

    Is that label accurate? Is it intolerant to challenge another's opinion? It depends on what definition of opinion you have in mind. For example, you may ask a friend "What do you think of the new Ford cars?" And he may reply, "In my opinion, they're ugly." In this case, it would not only be intolerant to challenge his statement, but foolish. For it's obvious that by opinion he means his personal preference, a matter of taste. And as the old saying goes, "It's pointless to argue about matters of taste."

    But consider this very different use of the term. A newspaper reports that the Supreme Court has delivered its opinion in a controversial case. Obviously the justices did not share their personal preferences, their mere likes and dislikes. They stated their considered judgment, painstakingly arrived at after thorough inquiry and deliberation(审议).

    Most of what is referred to as opinion falls somewhere between these two extremes. It is not an expression of taste. Nor is it careful judgment. Yet it may contain elements of both. It is a view or belief more or less inaccurately arrived at, with or without examining the evidence.

    Is everyone entitled to his opinion? Of course, this is not only permitted, but guaranteed. We are free to act on our opinions only so long as, in doing so, we do not harm others.

The ancient Egyptians were known for their carefully record-keeping, documenting prayers, declarations, and taxes. This extensive writing has now been linked to physical marks on the bones of the kingdom's scribes, as revealed in a new study published in Scientific Reports.

The study focused on the bones of 69 adult men buried between 2,700 and 2,180 B.C. at Abusir. The researchers identified 30 of these individuals as either professional scribes or high-status officials who needed language skills for their work. These scribes exhibited specific physical characteristics related to their occupation. Many had osteoarthritis in their right collar bone, shoulder, and thumb, likely due to the repetitive movements involved in writing. Their ankle and leg bones were flat from sitting cross-legged for extended periods, and they also showed signs of spinal(脊柱) osteoarthritis, possibly from looking up to listen and then bending over to write on papers.

An fascinating finding was the prevalence of jaw joint issues among the scribes, which 

the researchers speculate might be associated with chewing on reed(芦苇) pens. The ink for these pens was typically black from soot(烟灰) or red from iron for important documents.

However, not all scholars are convinced by the study's conclusions. Cynthia Wilczak and Danny Wescott, who were not involved in the research, argue that more evidence is necessary. Only six of the 30 bones were confirmed to be scribes based on their titles, while the rest were identified based on their tomb locations and social status. Additionally, there is no dental evidence to support the theory that the scribes chewed on pens.

Despite these criticisms, Brukner Havelková and her team aim to expand their research by examining scribe remains from other locations to confirm their findings. While this study is just the beginning, it offers a unique perspective into the lives of ancient Egyptian scribes and the physical cost their work demanded.