音标
英语音标：[nɒk]
美语音标：[nɑːk]
翻译
v.敲击；互撞；攻击
n.敲；敲门；敲打
例句
Be careful you don't knock your head on this low beam.
小心，别把头撞在这矮梁上。
I knocked loudly in the vain hope that someone might answer.
我敲门敲得很响，希望有人应声，却是徒然。
You look fabulous ─ you'll knock' em dead tonight.
你看上去漂亮极了——今晚肯定把他们迷倒。
