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
She is making steady progress in her learning.
她在学习中不断进步。
May I take your message?
你需要留言吗？
A man was lying in the box on top of a pile of woolen goods.
箱内有一个人正躺在一堆毛织品之上。