Stat.
[医] 镭射气单位(计算镭放射量的单位,相当于0.364毫居里)
🗣️ 情景例句
What's the matter?
到底发生了什么事？
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡，也不会变白。
You're not busy doing anything, are you?'
你不忙，是吗？”