knock on

US /nɑk ɑn/

UK /nɔk ɔn/

A1 初級
phr. v.片語動詞敲門
I heard someone knock on the door.
v.i.不及物動詞擊倒
He was penalised for a knock on.

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06:47紐西蘭- 7件旅行前功課 (7 things you should know before you visit New Zealand)