Keystone effect
[电] 梯形效应
🧩 词语组成解析
keystone
[['ki:stəun]]
n. 拱顶石, 楔石, 重点
🗣️ 情景例句
He is,
没有错。
That sounds good. Let's get something at the hotel restaurant. I feel a little tired.
那太棒了，我们就到旅馆餐厅吃点东西，我有点累了。
He never has anything to do.
他从来都是无事可做，