to officially ask again for something, for example for yourself to be considered for a job, especially by writing or sending in a form

Mr Gubbay said yesterday that he will not be reapplying for the job. 格贝先生昨天说他不会重新申请这份工作。

to put a substance on again

She carefully reapplied her lipstick 她仔细地重新搽了搽口红。

to make use of something in a different way or use it for a different practical purpose

to reapply principles/methods 重新运用原则／方法