R unit
[医] r单位, 伦琴单位
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
We'll call in a couple of days.
我们两三天后打电话。
He can't come and he sends his apologies.
他为他的不能前来致歉。
I think she hit her head when she fell.
我想，她跌下来时，把头给撞了。