1、give the green light

　　開綠燈，批準 ，相當于agree

　　2、give sb the green light

　　We are ready to build a great bridge over the river. We are just waiting for the municipal government to give us the green light.

　　我們已做好了在河上建一座大橋的準備，現在正等待市政府的批準。

　　3、give sb the green light to-v

　　Mother gave us the green light to go on the camping trip.

　　母親準許我們野營旅行。