Mayer's solution
[医] 迈尔氏溶液(磷酸钾、硫酸镁和磷酸钙水溶液,为细菌培养基)
🧩 词语组成解析
🗣️ 情景例句
It's not easy,
实在不容易。
We'll talk about it later.
再说啦！
I used to travel by air a great deal when I was a boy.
我在幼年的时候，曾多次乘飞机旅行。