开绿灯

kāi lǜ dēng

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释义

  1. 1. to give the green light
  2. 2. to give the go-ahead

开绿灯 的构成词

灯
dēng

lamp

绿
lǜ

green

绿灯
lǜ dēng

green light (traffic signal)

开
kāi

to open

绿
lǜ

green

绿灯
lǜ dēng

green light (traffic signal)