backdrop是什么意思 n. 背景幕, 背景 n. scenery hung at back of stage backdrop的用法和例句: 1. All we'll see is your outline against the backdrop. 人们只能看到你在暗处的大致轮廓 2. Britain in '78 was the perfect backdrop. 1978年的英国正是其完美背景 3. All...