phew

(also whew) interj (written representation of a short soft whistling sound made by blowing out or sucking in one's breath, and used to express relief, exhaustion or amazement 呼气或吸气发出的很短的口哨声, 用以表示松口气、 疲劳或惊奇): Phew! That was a nasty moment -- that car nearly hit us. （发出口哨声）当时可真危险--那辆汽车差点撞上我们.

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