try his best

• conj. 竭尽所能(尽力)

例句

用作连词 (conj.)

1. He did his best to further the interests of his state.
   他竭尽所能增进他那个州的利益。
2. Faced with so arduous a task, we must try our best to fulfil it.
   面对着这样的艰巨任务，我们必须竭尽所能把它完成。