Chromakey
色度键（指在胶片原有图像上添加图像）
🗣️ 情景例句
I am, too.
我也一样。
But it's supposed to get cloudy and windy again this afternoon.
但是，据说今天下午又要转阴刮风了。
We gently woke him up and asked him to ferry us to the other side.
我们轻轻地把他唤醒，请他把我们摆渡过溪。