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
Tell me all about your interests, your hobbies ...
告诉我你所有的兴趣和爱好。
Would Dr.Block be able to see me at 9:30 tomorrow?
明天9点半布洛克医生能给我看病吗？
The pictures it sent us were very disappointing because its main mirror was faulty!
它传送给我们的图像很令人失望，因为它的主要镜子有误差。