flap down的意思|示意
美 / flæp daun /
英 / flæp daʊn /
垂下
flap down相关例句
Stick the flap down with tape or glue or something.
把这信封口盖用纸条或胶水之类的东西粘上.
互联网
As I pulled the flap down to the mailbox, a single letter instantly flew out.
我走过草坪,拉开了邮筒的盖子, 一封信轻轻地飘了出来.
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