16. A: Do you like playing chess?                                 
B: Yes, but I usually can't find a rival.   
A: 喜欢下象棋吗？ 
B: 爱下，可经常是没有对手。

17. You can get on line and play. You will have rivals all the time, for there are people all day. 
你可以上网呀，从来不会没对手，24小时均有人等候。

18. A: Is it computer game? No fun.  
B: No, you are playing with an online friend seriously on the Internet.
A: 是电脑游戏吧，没劲。   
B: 不对，是你通过Internet跟网友实打实地玩。

19. A: What are the differences between the real-play and the network game?
B: The only difference is that the player don't know what the rival looks like.
A: 和真的下象棋有什么区别？
B: 只不过不知道对方长什么样子罢了。

20. It's the social center, and there are many other friends, too.
      那里是一个社交中心，还有别的朋友呢！