Backprojection
幕后投影; 背景放映
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
I must say that I'm a little at a loss as to how to introduce them.
我必须表明对于如何介绍他们，我有点不知所措。
It's not.it is a little oversized.
不是，它比标准的大了一点。