重點講解：
1. finish doing sth.
結束某事；
eg. As soon as he'd finished eating, he excused himself.
他一吃完就告辭離開了。
eg. After finish doing your homework, you can have a rest.
做完家庭作業，你可以休息一會了。
2. no amount of
怎么也不，再多也不；
eg. No amount of lies can cover up reality.
謊言再多也掩蓋不了事實真相。
eg. No amount of money can equal memories like that.
再多的金錢也比不上那樣的記憶。
eg. No amount of washing will remove them.
怎么洗也洗不掉。
3. change one's mind
（使）改變主意；（使）改變決定；
eg. She's very young. She might change her mind about what she wants to do.
她很年輕，對于自己想要做的事情也許會改變主意。
eg. It would be impossible to change his mind.
要讓他改變想法是不可能的事情。
4. desperate to do sth.
急需要做某事；渴望做某事；
eg. They'd been married nearly four years and June was desperate to start a family.
他們結婚已快4年了，瓊非常渴望要個孩子。
eg. After four days she is bored stiff and desperate to get back to work.
她過了四天就煩了，急著要回去工作。
5. pretend to do sth.
假裝做某事；
eg. Sometimes the boy pretended to be asleep.
有時這個男孩會假裝睡著了。
eg. If you pretend to know what you don't know, you'll only make a fool of yourself.
不懂裝懂就會鬧笑話。
6. in a flash
轉瞬；一瞬間；
eg. The answer had come to him in a flash.
他一下子就有了答案。
eg. It was done in a flash.
一眨眼的工夫就完成了。