Keystone shaped
[电] 梯形
🧩 词语组成解析
keystone
[['ki:stəun]]
n. 拱顶石, 楔石, 重点
a. 成某种形状的, 制成一定形状的, 有某种形状的, 合适的, 计划好的, 有目标的\\n[医] 具形的, 形似的
🗣️ 情景例句
The subject is unfamiliar to me.
那个问题我不熟悉。
I'm going to buy four feet.
我要买四英尺。
In this way, he has begun his own private 'telephone' service.
就这样，他开始自己的私人“电话”业务。