狠命

tā hěn mìng zhuā zhe qiè zéi bù fàng

他狠命抓着窃贼不放。

He made a desperate effort not to let go of the thief.

hěn mìng zhuī gǎn

狠命追赶

go all out to run after

wǒ zhuā zhe bǎ shou hěn mìng yī zhuài

我抓着把手狠命一拽。

I took hold of the handle and pulled as hard as I could.

tā hěn mìng de chōu yān

他狠命地抽烟。

He pulled hard on the cigarette.