重点讲解：
1. on no account
绝不；切勿；
eg. On no account should the mixture boil.
切勿让这种混合物沸腾。
eg. When asked for your views about your current job, on no account must you be negative.
当你被问及对目前工作的看法时，绝不要表现得消极。
2. impose on
把…硬加给；把…强塞给；勉强（某人）做事；
eg. I was afraid you'd simply feel we were imposing on you.
我担心你会觉得我们是在勉强你。
eg. 'Mum thinks I should stop imposing on your hospitality, Leo,' said Grace.
“利奥，我妈妈觉得我不应该再在这儿麻烦你了，”格雷丝说。
3. clear out
清理，整理（容器、房间等）；
eg. I took the precaution of clearing out my desk before I left.
我临走时特地事先把办公桌清理了一下。
eg. I need to clear out my drawers.
我需要把我的抽屉清理干净。
4. go against
违背；违反；
eg. Changes are being made here which go against my principles and I cannot agree with them.
这里作的改动违背了我的原则，我不能同意。
eg. His thinking goes against all logic.
他的思维完全不合逻辑。
5. common sense
常识；直觉判断力；
eg. Watts thinks common sense is misleading.
瓦特认为常识会产生误导。
eg. He lacked any of the practical common sense essential in management.
管理方面基本的实用常识他一点也不懂。