3 sentences

1. 她决不会危及他的性命。

   tā jué bù huì wēi​jí tā de xìng​mìng.

   She would never endanger his life.

   Source: OpenSubtitles

2. “危及”中的“危”字有损害、威胁的意思。

   “ wēi​jí” zhōng de“ wēi” zì yǒu sǔn​hài, wēi​xié de yì​si.

   The character 'wei' in 'weiji' means to harm or threaten.

   Source: Dong Chinese Dictionary

3. 环境污染正在危及许多稀有物种的生存。

   huán​jìng wū​rǎn zhèng​zài wēi​jí xǔ​duō xī​yǒu wù​zhǒng de shēng​cún.

   Environmental pollution is endangering the survival of many rare species.

   Source: Dong Chinese Dictionary