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
That's all right. I hope we can help you at some other time. Good-bye.
好了，希望我们今后还能给你帮助。再见。
Excitement and happiness, and we are deeply grateful to you for that.
也有开心、兴奋和愉快的时候，我们衷心感谢大家所做的一切。
What's new?
有什么新鲜事吗？