Mingin
明京(尿中的一种含氮物质)
🗣️ 情景例句
Don't worry, Alexandra.
别担心，Alexandra。
I'm glad to hear about you passed the test.
我很高兴得知你通过了考试。
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。