阅读下面短文，根据其内容填空和回答问题。Recently, secondhand transaction(交易) has become quite popular in our daily life. More and more secondhand goods have found their way in the market, such as used books, furniture and even cars. Why do so many people like to buy secondhand goods? One of the most important reasons is that the Internet provides a more convenient and quicker transaction platform(平台) for secondhand goods.
Li Li, 29, an office worker in Shanghai, sells used products online. Since she began to cooperate with a secondhand transaction platform two years ago, she has sold nearly 14，000 yuan of goods.
The size of China's secondhand product market rose from about 300 billion yuan in 2015 to more than 1 trillion yuan in 2022. Xinhua News Agency reported that the rapidly growing Chinese online resale platforms have also driven secondhand transactions.
"The increase shows Chinese young people's changing views on consum-ption(消费)，" said Zhang Li, a researcher from the Chinese Academy of International Trade and Economic Cooperation. "Traditionally, buying used products is often seen as a sign of being poor that is socially shameful. But today they focus on the actual value of the product instead of whether it is completely new，" said Zhang.
Secondhand consumption also shows the ideas of environmental protection and the need to cut down on waste. "Humans are the creators of things in life and should be responsible for everything they create，" said Lu Yaping, the founder of a secondhand goods exchange platform.
