重点讲解：
1. take apart 拆开；拆散；拆解；
例句：When the clock stopped, he took it apart, found what was wrong, and put the whole thing together again.
钟停以后，他把它拆开，查出毛病所在，又把它重新组装了起来Et(;^6mq.R]。
2. fall asleep 入睡；睡着；进入梦乡；
例句：He was so tired that he fell asleep quickly.
他非常疲劳，很快就睡着了Too)yG%nb3xC。
3. work up 使(自己)心烦意乱(或气愤)；
例句：She worked herself up into a bit of a state.
她把自己弄得有点儿紧张bp-DVXGsi)rGP。
4. be aware of 知道的；明白的；
例句：She was well aware of the difficulties that had to be surmounted.
她很清楚必须克服哪些困难J&ZbSgvU~o|0X~t;TrA。
5. on top of 另外；加之；除…之外(还)；
例句：He gets commission on top of his basic salary.
他除了基本薪资还可以得到佣金TFse,jt,]gtsAgWA;aE。