3 sentences

1. 医生让他深深地吸气。

   yī​shēng ràng tā shēn​shēn de xī​qì.

   The doctor told him to take a deep breath.

   Source: Dong Chinese Dictionary

2. 现在，用嘴吸气。

   xiàn​zài, yòng zuǐ xī​qì.

   Now, inhale through your mouth.

   Source: OpenSubtitles

3. 我要你吸气。

   wǒ yào nǐ xī​qì.

   I want you to inhale.

   Source: OpenSubtitles