/ɪɡˈzɜːt/
~ sth to use power or influence to affect sb/sth 运用；行使；施加
He exerted all his authority to make them accept the plan.
他利用他的所有权力让他们接受这个计划。
The moon exerts a force on the earth that causes the tides.
月球对地球的吸引力引起潮汐。
~ yourself to make a big physical or mental effort 努力；竭力
In order to be successful he would have to exert himself.
他必须努力才能成功。