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
And I've been thinking about it a lot lately.
最近我一直就此事想了很多。
I played in the yard this afternoon.
我今天下午在庭院玩。
Yes. But it's such an important match, we can't miss it.
是的。但是这是场很重要的比赛，我可不想错过。