https://online2.tingclass.net/lesson/shi0529/0008/8490/119.mp3
https://image.tingclass.net/statics/js/2012
29. Please _____yourself from smoking and spitting in public places, since the law forbids them.
A. restrain B. hinder C. restrict D. prohibit
restrain 限制，抑制(某人的行为)
hinder 阻碍，阻碍
restrict=put a limit 限制 (时速，物价等)
prohibit 禁止
hamper 妨碍，约束
