1、give the green light

　　開綠燈，批準(zhǔn) ，相當(dāng)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(zhǔn)備，現(xiàn)在正等待市政府的批準(zhǔn)。

　　3、give sb the green light to-v

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

　　母親準(zhǔn)許我們野營(yíng)旅行。