绿灯

green light

OK lamp

preview light

绿灯[lǜdēng]

-{交}（可通行的绿色灯光）greenlight-（准许前进）permissiontogoaheadwithsomeproject;greenlight:
givethegreenlightto开绿灯
短语绿灯继电器greenlightrelay绿灯信号复示器greensignalrepeater

司机在红绿灯前把车停住。
The driver pulled up at the traffic lights.

在交通信号轮换到绿灯以前不要穿过马路。
Before the traffic signal turns to green light don't cross the street.

夜晚，在港口左边一边的海船上有红灯，在右舷的船上有绿灯。
At night, ships at sea carry a red light on the port side and a green light on the starboard.

那司机等候绿灯放行，让发动机空转著。
The driver waited for the green light, his engine racing.

交通灯由红灯变绿灯了。
The traffic lights have changed (from red to green).