竭尽全力

面对复杂多变的外部环境，我们做事必须做到竭尽全力。

miàn duì fù zá duō biàn de wài bù huán jìng, wǒ men zuò shì bì xū zuò dào jié jìn quán lì.

Faced with a complex and ever-changing external environment, we must do our best.

全体医护人员竭尽全力抢救伤员，终于将病人从死亡线上拉了回来。

quán tǐ yī hù rén yuán jié jìn quán lì qiǎng jiù shāng yuán, zhōng yú jiāng bìng rén cóng sǐ wáng xiàn shàng lā le huí lái.

All the medical staff tried their best to rescue the wounded and finally brought the patient back from the line of death.