本场难题及解析：
　　Describe a program or app in your computer or phones.You should say:
　　1、What the app/program
　　2、When, where you found it
　　3、How you use it
　　4、And how you feel about it

　　When it comes to a program or app in my computer or phones, the first thing that bumped into my mind is Wechat. It was recommended by my friend, and it was one of most useful app he had ever used, so I decided to download it. At first, I found many applications the Wechat had and I had no idea about how to use it. Gradually, I surfed on the Internet to find out the instructions about it and then I got hang of it. The most useful one is that I can send voice message to my friends anytime I want, which is so convenient. Also, we can post our feelings and photos on the moments, and our friends can give us “like”. It can strengthen the relationship between friends. Furthermore, we can transfer money to each other, so we don’t need to pay check to them. I feel this app is so handy. On the other hand, it wastes of time, because people will spend lots of time on it. As a result, they don’t want to study or work anymore.