4 sentences

1. 现在请举起你的右臂。

   xiàn​zài qǐng jǔ​qǐ nǐ de yòu bì.

   Now please raise your right arm.

   Source: OpenSubtitles

2. 把你的右臂举过头顶。

   bǎ nǐ de yòu bì jǔ guò tóu​dǐng.

   Raise your right arm over your head.

   Source: OpenSubtitles

3. 我的左臂没知觉了。

   wǒ de zuǒ bì méi zhī​jué le.

   I can't feel my left arm.

   Source: OpenSubtitles

4. 你习惯用左臂来保持平衡。

   nǐ xí​guàn yòng zuǒ bì lái bǎo​chí píng​héng.

   You tend to use your left arm for balance.

   Source: OpenSubtitles