我们已竭尽所能。

We've done everything possible.

Source: Tatoeba

Sentence Composition

1 我们 wǒmen we; us; ourselves; our
2 已 yǐ
  1. already
  2. to stop
  3. then
  4. afterwards
3 竭尽 jiéjìn to use up; to exhaust
4 所能 suǒnéng
  1. according to one's capabilities
  2. what sb is capable of