Serose
[医] 血清ж
🗣️ 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。
Knowledge advances by steps and not by leaps.
知识只能循序渐进，不能跃进。
I can't type this letter.
我打不了这封信。