Keystone correction
[电] 梯形校正
🧩 词语组成解析
keystone
[['ki:stəun]]
n. 拱顶石, 楔石, 重点
🗣️ 情景例句
I've met Mrs. Right.
我已经遇上了意中人。
It's out of the question.
这是不可能的。
There was no doubt that we were unwelcome visitors.
毫无疑问，我们的来访是不受欢迎的。