to control the actions or behaviour of someone by force, especially in order to stop them from doing something, or to limit the growth or force of something

When he started fighting, it took four police officers to restrain him. 他出手打人，4个警察才把他制服。

She was so angry that she could hardly restrain herself. 她气得几乎都控制不住自己。

You should try to restrain your ambitions and be more realistic. 你应该尽量控制自己的野心，更现实一些。

Growth in car ownership could be restrained by increasing taxes. 或许可以通过提高税费来限制汽车保有量的增长。