I.u.
[医] 免疫单位
🏥 医学释义
国际单位
🗣️ 情景例句
My, what a downpour! And there doesn't seem to be any sign of its stopping.
哎呀，好大的雨呀！没有一点像要停的样子。
This world belongs to the energetic.
世界属于精力旺盛的人。
I say, let's go out for a drive next Sunday.
我说，咱们下星期天开车出去兜兜风吧。