Radian length
[电] 弧长
🧩 词语组成解析
radian
['reidiən]
n. 弧度;弪;
🗣️ 情景例句
And how old are you?
你几岁了？
When did you leave?
你什么时候离开？
No, this is Sam.
不，我是萨姆。