2 sentences

1. 探险家在极端环境下努力求生。

   tàn​xiǎn​jiā zài jí​duān huán​jìng xià nǔ​lì qiú​shēng.

   Explorers struggle to survive in extreme environments.

   Source: Dong Chinese Dictionary

2. 即使身处险境，他依然保持着强烈的求生欲望。

   jí​shǐ shēn​chǔ xiǎn​jìng, tā yī​rán bǎo​chí zhe qiáng​liè de qiú​shēng yù​wàng.

   Even in danger, he still maintains a strong will to survive.

   Source: Dong Chinese Dictionary