“吹气”造句

他来回地吸气吹气.
He puffed breath in and out.

要明确吹气是在手抬起时吹入的.
Be sure to ventilate on the upstroke.

小姑娘向她的肥皂泡中吹气.
The little girl bubbles air into her soap - suds.

• #吹气