Last year I was put into a lower­level math class at school. The reason I was in this class had nothing to do with my intellect (智力) or maths skills. I am blind.

The only problem with being in this class was that I was surrounded by “at­risk” students. These were kids who did not do well in school and they were constantly in trouble with the school and the law.

    One Tuesday morning, I went to a Christian Student Union meeting before school. There was a guest speaker there that day talking to us about praying (祈祷) for our enemies. I began to think about this. As I considered the idea, I prayed and asked God how I could pray for the kids in my class. I had forgotten that they weren't bad kids; they were just lost.

    At first, the prayers were mechanical. When I would hear their voices in class, I would pray, “Dear God, please bless so­and­so...” But as I continued, I began to think of the kids more often, and in my quiet time at home I would ask God to bless (保佑) the rest of my classmates.

    As time went on, my classmates became more than just annoying kids to me. There was something growing inside my heart for them, something that wasn't there before. They began to feel like family, and I was learning to love them in a way I never thought possible.

    I now see that praying is such a powerful act. Prayer is the most powerful tool a Christian has. When I pray for those around me, it also blesses my life, and it changes my opinion of others. I realized I needed God's blessings to see the world through loving eyes. The prayers I said for others turned out to help me the most.

    Last month, the president of the Maldives, Mohamed Nasheed, held an underwater meeting. The purpose of the ocean floor conference is to highlight the effects of global warming on his island nation.

    The Maldives, located in the Indian Ocean, is the lowest-lying country on Earth. Melting glaciers and polar ice are causing sea levels to rise, putting the Maldives and other low-lying areas at risk of being swallowed by the sea within the next 100 years.

    What can be done? Scientists and leaders from 190 nations will try to figure that out at the United Nations climate change conference next month. The main goal of the meeting is to come up with a new climate agreement for 2012 and beyond. That is when the existing plan, the Kyoto Protocol will expire. The agreement was created in Kyoto, Japan, in 1997. Since then, it has been ratified(正式批准) by 190 nations. The countries promised to limit the amount of greenhouse gases, such as carbon dioxide, which they produced each year.

    The debate over who should cut greenhouse emissions has been going on for years. The US has been hesitant to reduce emissions unless fast-growing nations such as China and India also reduce their use of fossil fuels. In recent months, China has taken steps to be greener. But India has been unwilling to change. It argues that it is unfair for rich nations to ask poorer countries to cut down on emissions.

    While world leaders work on a plan in Copenhagen, there are many things you can do to help the planet. You can save fuel by walking or biking instead of riding in a car. You can start a recycling program in your community. You can plant trees. Trees absorb carbon dioxide from the air and give off oxygen.

    Friends always ask why I, a middle-aged woman with no athletic talent, travel to perilous places—the jungles of Thailand or Borneo, for example, where the water is often unsafe and the food risky; places with infectious diseases, poisonous snakes and the wildest animals; some places where the locals are just a few generations past headhunting.

    I never know how to answer. My travel decisions assumed a new gravity nine years ago after I suffered a stroke. To prevent another stroke, my doctors told me, I'd have to take dangerously high levels of blood thinner (血液稀释剂) for the rest of my life and any travel would be risky.

    I had to think about what was important to me: family, of course, and friends. But then what? No matter how many times I thought about it, no bucket list was complete without travel. Then I had to decide how I might manage the risk. I had to decide how lucky I felt.

    My return to travel after my stroke came in baby steps. The first real test of my travel courage came nine months after my stroke when I joined my husband, Jack, on a business trip to China. After we'd toured the remains of a Tang dynasty temple on a high mountain, Jack wanted to ride down on a toboggan (长雪橇).

    Before the stroke it would've seemed like fun. But now? I hesitated. My mental klaxon (高音喇叭) screamed warnings about the consequences of a cut, a fall, and a crash. Then, gaining confidence from who knows where, I lowered myself carefully into the toboggan, which marked my adventure travel comeback.

    In the years since then, I've traveled about twenty-five percent of the time. Through it all, my lucks held out—no deadly falls, no car accidents or serious infections. For me, adventure travel is a risk worth taking. Travel broadens my world and keeps me connected to nature. What's more, saying "yes" to travel keeps me connected to myself.

    On Tuesday. Google announced a new feature (特点) for the Google Assistant. People can send reminders to friends and family on their phone or their Google Home equipment.

    Google has named the new feature Assignable Reminders. Here's how the new Assignable Reminders feature works with Google Assistant.

    You start off by simply starting the Google Assistant by saying "Hey Google" or by whatever shortcut (快捷键) you have set on your phone. After this, you can tell Google Assistant to remind someone of something at a certain time.

    This feature will also be feasible on the Google Home smart speaker, or a smart display which works with Google Assistant. The person receiving the reminder can also replay the reminder by asking Google Assistant to show them a list of all their reminders.

    These reminders can only be sent to people who are already listed as family in your Google account (账户) or people who are linked (连接) and voice-matched to the same Google Home equipment.

    Another feature built within Assignable Reminders is the ability to set reminders based on someone's place. For example, you can set a reminder for friends to buy you something from a store as soon as they reach there.

    Assignable Reminders will be put into use in the next few weeks in the U.S. , the U.K, and Australia.