Chromakey
色度键（指在胶片原有图像上添加图像）
🗣️ 情景例句
I am so touched. The two of you are really something.
我太感动了。你们俩个真是了不起。
Do you have difficulty matching you feelings with words?
你是很难把自己的心意用言语表达吗？
Let me have a look. Oh, here it is. But it's an old one. Where is my new one?
让我看看，在这里，这是那个旧的，我那件新的哪去了呢？