2 sentences

1. 任凭我怎么劝，他死活不答应。

   rèn​píng wǒ zěn​me quàn, tā sǐ​huó bù dā​ying.

   No matter how much I tried to persuade him, he simply wouldn't agree.

   Source: Dong Chinese Dictionary

2. 他只顾自己，完全不顾别人的死活。

   tā zhǐ gù zì​jǐ, wán​quán bù gù bié​ren de sǐ​huó.

   He only cares about himself and completely ignores the well-being of others.

   Source: Dong Chinese Dictionary