Hall's solution
[医] 霍尔氏溶液, 醋酸士的宁溶液
🧩 词语组成解析
🗣️ 情景例句
You've been a great help.
你帮了大忙。
He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的阅读和写作是强项，但他希望知道怎样去理解和说得更好。
We had better go back to the station now,Ken.
肯，我们现在最好回车站去。