3 sentences

1. 许多昆虫以吸食花蜜为生。

   xǔ​duō kūn​chóng yǐ xī​shí huā​mì wéi​shēng.

   Many insects live by feeding on nectar.

   Source: Dong Chinese Dictionary

2. 蜜蜂以花蜜为食。

   mì​fēng yǐ huā​mì wéi shí.

   Bees feed on nectar.

   Source: Tatoeba

3. 蜂蜜是蜜蜂采集花蜜后的产物。

   fēng​mì shì mì​fēng cǎi​jí huā​mì hòu de chǎn​wù.

   Honey is the product of bees collecting nectar.

   Source: Dong Chinese Dictionary