重点讲解：
1. pick up
（不费力地）获得，学会；
eg. She soon picked up French when she went to live in France.
她到法国居住后很快就学会了法语。
eg. Interviewers quickly learn to pick up non - verbal signals.
采访者很快学会读懂非言语信号。
2. end up
最终；结果；到头来；
eg. Wasteful people usually end up in debt.
挥霍浪费者最后往往负债。
eg. If you do that, you'll end up with egg on your face.
你要是做那件事,必将以耻辱告终。
3. need to do sth.
需要做某事；
eg. The method seems good but it needs to be tried out.
这个方法似乎不错，但需要试验一下。
eg. People need to be conscientized about their rights.
需要让人们明白自己的权利。
