Leach's tests
[医] 利奇氏试验(检甲醛)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Oh! I just drop in on him for a chat.
哦，我只是顺便来和他聊聊天。
There are four quarters in every dollar.
每美元有四个二角五分。
If you have any questions on the details， feel free to ask.
如果对某些细节有意见的话，请提出来。