答案：1. For example, they normally use nin to address others in a formal situation.
比如,在正式场合,他们通常用“您”来称呼别人。
2. If you want to show politeness and respect for others, you can't go wrong with nin.
如果你想对别人表示礼貌和尊重,用“您”这个字再恰当不过了。
3. I've also realized that the Chinese behave differently from the British when it comes to praise.
我还发现,在称赞方面,中国人和英国人的表现也不一样。
4. They are too modest to accept praise openly.
他们太谦虚了,不好意思直接接受称赞。
5. I ate so much because I was too polite to refuse!
我吃得太多,因为我不好意思拒绝!
6. It can be hard at first to get used to all these differences.
一开始要适应所有这些差异可能会很难。
7. But if you are in another country, my advice is: when in Rome, do as the Romans do.
但如果你身处异国他乡,我的建议是:入乡随俗。

答案：1. fully adv.完全地，全部地，充分地→full adj.满的；完全的
2. loudly adv.大声地；吵闹地→loud adj.大声的
3. push vi. & vt.挤开；推动
4. past prep.在另一边，到另一侧
5. discussion n.讨论→discuss vt.讨论
6. cheat vi. & vt.欺骗
7. promise vt. & vi.承诺，许诺
8. pear n.梨
9. own vt.拥有→owner n.所有者

答案：动词短语
1. jump the line 插队
2. cool off 变凉；冷却下来
3. push past you 从你身边挤过去
4. join the discussion 加入讨论
5. promise to do sth 承诺做某事
6. keep one's word 信守诺言
7. own the pear tree 拥有这棵梨树
其他
8. all at once 一起，同时
9. in one's way 挡道
10. even though 尽管，即使

答案：1. When you travel around the world, it is important to have enough information about the manners of different cultures.当你环游世界时，有足够多关于不同文化的礼仪的信息是很重要的。
2. Don't talk too loudly.不要太大声说话。
3. Don't walk too fast in case you run into someone.走路不要太快，以免撞到别人。
4. In public places, people are thoughtful enough to keep quiet.在公共场所，人们会体贴地保持安静。
5. The travellers on the road were all too thirsty to walk any further.路上的旅行者都渴得走不动了。