M-concentration m
[医] 浓度(在液体培养基内微生物的最大密度)
🧩 词语组成解析
🗣️ 情景例句
No, thanks.
不用了， 谢谢。
Payday is here again.
又到了领薪水的日子了。
4 Think of a time when you were happiest. What were you doing?
4。想一想你感到最高兴的时刻。当时你在做什么？