discourage的常用短语：
用作动词 (v.)
discourage from (v.+prep.)
阻止某人 prevent sb to do sth
discourage sb from v-ing
用于 be ～ed 结构
discourage的用法例句：
1. The Swiss wanted to discourage an inflow of foreign money.
瑞士人想要阻止外资流入。
2. Many parents find it hard to discourage bad behaviour.
很多父母觉得要孩子循规蹈矩是件很难的事情。
3. His parents tried to discourage his interest in music, but he persisted.
他的父母设法打消他对音乐的兴趣，但他始终坚持。
4. a campaign to discourage smoking among teenagers
劝阻青少年吸烟的运动
5. Although she did not reciprocate his feelings, she did not discourage him.
尽管她没有回应他的感情, 她也没有使他丧失信心.
6. I have tried to discourage him from biting nails.
我曾劝阻他不要咬指甲.
7. Don't let one failure discourage you.
勿因一次失败而气馁.
8. We discourage smoking in this school.
在这所学校里我们劝阻吸烟.
