4 sentences for 以下 (yǐ​xià — below)

1. 他颈部以下全身瘫痪。

   tā jǐng​bù yǐ​xià quán shēn tān​huàn.

   He's paralyzed from the neck down.

   Source: OpenSubtitles

2. 水位降到了警戒线以下。

   shuǐ​wèi jiàng​dào le jǐng​jiè​xiàn yǐ​xià.

   The water level has dropped below the warning line.

   Source: Dong Chinese Dictionary

3. 今天的气温降到了零度以下。

   jīn​tiān de qì​wēn jiàng​dào le líng dù yǐ​xià.

   Today's temperature dropped below zero.

   Source: Dong Chinese Dictionary

4. 由于持续干旱，水库的水量已经降到了警戒线以下。

   yóu​yú chí​xù gān​hàn, shuǐ​kù de shuǐ​liàng yǐ​jīng jiàng​dào le jǐng​jiè​xiàn yǐ​xià.

   Due to the ongoing drought, the water level in the reservoir has dropped below the warning line.

   Source: Dong Chinese Dictionary