Lassaigne tests
[医] 拉赛涅氏试验(检有机氮)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
But my birthday is tomorrow.
但是我的生日就在明天。
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
That's the trouble, vicar,' answered Bill.
“问题就在这里，牧师，”比尔回答说。