let himself go

• vi. 行动自由(放松)

let himself go的用法和样例：

例句

1. Since his wife died he's just let himself go.
   自从妻子死后，他就变得不修边幅了。
2. He has let himself go a bit since he lost his job.
   他自从失业以来变得有点邋遢了。