他深深地呼吸着空气。他的鼻孔随着一股外星的气息而张大。

He takes a deep breath and smells the air.

youdao

他的眼睛睁大了，不知道是出于惊讶还是出于害怕，他的鼻孔张大了。

His eyes were wide, as if in shock or fear, his nostrils flared.

youdao

他的眼睛睁大了，不知道是出于惊讶还是出于害怕，他的鼻孔张大了。

His eyes were wide, as if in shock or fear, his nostrils flared.

youdao