If someone hyperventilates, they begin to breathe very fast in an uncontrollable way, usually because they are very frightened, tired, or excited.
例句
I hyperventilate when they come near me with the needle.当他们拿着注射针走近我时，我的呼吸急速加快。
英英词典释义
Noun
1. an increased depth and rate of breathing greater than demanded by the body needs; can cause dizziness and tingling of the fingers and toes and chest pain if continued