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
Hey, let's go out and have some fun tonight.
嘿，咱们今晚出去玩儿吧。
This pencil is longer than that one.
这支铅笔比那一个长。
You can either stay or leave.
你或者留下或者离开。