Q.q.h.
[医] 每四小时
🗣️ 情景例句
Who is that?
你是谁？
I'm really positive that this product has all the features you have always wanted.
我确信这种产品有各种你所要的款式。
Because of his revolutionary views, he spent many years in prison.
由于他的革命观点，他在监狱里度过了许多年。