2 sentences

1. 宿主杀灭病毒，或病毒杀死宿主。

   sù​zhǔ shā​miè bìng​dú, huò bìng​dú shā​sǐ sù​zhǔ.

   The host kills the virus, or the virus kills the host.

   Source: OpenSubtitles

2. 寄生虫会从宿主体内夺取营养。

   jì​shēng​chóng huì cóng sù​zhǔ tǐ nèi duó​qǔ yíng​yǎng.

   Parasites draw nutrients from their hosts.

   Source: Dong Chinese Dictionary