do your best

conj. 竭尽所能(尽力)

例句与用法：

No one expects you to be perfect, but we do expect you to do your best always.

没人指望你完美无缺，但是我们盼望你永远尽最大的努力。

Please do your best and oblige.

希尽力而为，则不胜感谢之至。

It doesn't matter if you don't win just do your best.

赢不了也不要紧－－只要你尽力而为。