重点讲解：
1. bid on
竞标；投标；
eg. They bid on the new building.
他们投标承包新楼房。
eg. Many people at the auction bid on the old furniture.
很多人参加了拍卖，竞买旧家具。
2. get caught up in
陷入；
eg. Innocent passers-by got caught up in the riots.
无辜的过路人被卷入了那场暴乱。
eg. oo often we get caught up in our own desires.
我们不断追逐着自己的欲望。
3. keep on
重复；继续；
eg. My wife keeps on saying that I work too hard.
我妻子总说我工作太辛苦了。
eg. To know it's no use , but keep on doing it--there can be no greater folly than this.
知其不可而为之，愚不可及也。
4. at last
终于；最后；到底；
eg. I'm so glad that we've found you at last!
我们终于找到你了，我真是太高兴了！
eg. At last the train arrived in the station.
火车终于到站了。
5. hate to do sth.
讨厌；厌恶；不喜欢做某事；
eg. He hates to be interrupted during training.
他不喜欢在训练过程中被人打扰。
eg. I hate to disillusion him.
我真不想使他的幻想破灭。