重点讲解：
1. be sick of 厌倦的；厌烦的；厌恶的；
例句：She has had the same job for years and is heartily sick of it.
她做这一工作已多年，因此从心底里感到厌烦。
2. ought to do sth. 应当，应该；
例句：You ought to scrap the old bike and buy a new one.
你应该扔掉这辆旧自行车，买一辆新的。
3. stop by 顺便拜访；顺路探望；
例句： If you've got free time please stop by and say hello.
有空的时候就来打个招呼吧。
4. be crazy about 迷恋的；爱上的；
例句：None of that matters, because we're crazy about each other.
那些都不重要，因为我们深深地爱着对方。
5. take back 收回，撤回（所说的话或想法）；
例句：I take it back, I think perhaps I am an extrovert.
我收回说过的话，我想也许我是外向型的人。
6. bring out 使（某种通常不易显露的行为或情感）显现；激发；
例句：He is totally dedicated and brings out the best in his pupils.
他全身心地投入，最大限度地激发学生的潜能。