2 sentences for 卖命 (mài​mìng)

1. 我可不想为了他那种人卖命。

   wǒ kě bù xiǎng wèi le tā nà zhǒng rén mài​mìng.

   I certainly don't want to risk my life for someone like him.

   Source: Dong Chinese Dictionary

2. 他为这家公司卖命了二十年，却没得到应有的报酬。

   tā wèi zhè jiā gōng​sī mài​mìng le èr​shí nián, què méi dé​dào yīng yǒu de bào​chou.

   He worked himself to the bone for this company for twenty years but didn't get the compensation he deserved.

   Source: Dong Chinese Dictionary