一.句子:knock on wood
二.含义:敲木头,是指接触木制的东西可以确保好运、甩掉坏运气;往往是用在表达某种愿望之后,意思是“但愿有这种好运”。
三.对话:
A: you broke your arm again?
B: Yeah.This is my third time.
A: I've never broken my arm. knock on wood!
B: it's no big deal~
四.扩展:
1.knock at 一般和the door搭配表示:敲门knock at the door
2.knock on可以跟物品,表示撞上
knock on head\knock on back...
Thank coachshane
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