Q.q.h.
[医] 每四小时
🗣️ 情景例句
Are you married or single?
你结婚了还是单身？
To show our gratitude to all of you for being our reliable business partners.
为表达我们对你们——我们值得信赖的生意伙伴的感谢。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。