~ sth (on/against sb/sth)to make sure that people obey a particular law or rule 强制执行，强行实施（法律或规定）
It’s the job of the police to enforce the law.
警察的工作就是执法。
The legislation will be difficult to enforce.
这一法规将难以实施。
United Nations troops enforced a ceasefire in the area.
联合国军队在该地区强制执行停火命令。
~ sth (on sb)to make sth happen or force sb to do sth 强迫；迫使
You can’t enforce cooperation between the players.
队员间的配合不能靠强迫。