刀尖

yào shi yǒu rén yòng dāo jiān dǐng zhe nǐ bù yào shì tú qù zhēng biàn

要是有人用刀尖顶着你，不要试图去争辩。

Don't try to argue when somebody is threatening you with a knife.

tā zài dāo jiān de xié pò xià zāo dào le qiǎng jié

他在刀尖的胁迫下遭到了抢劫。

He was robbed at knifepoint.