Arsenometry
[化] 亚砷酸滴定法
🗣️ 情景例句
How you doing?
你怎么样了？
What is your hurry?
什么事让您这么着急呢？
My shoe has been pressing against my foot, so it hurts a bit.
我的鞋一直挤着脚，所以脚有点疼。