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
I know it's Malcolm Stewart.
我就知道是Malcolm Stewart。
I think this is a fake diamond.
我想这是假钻石。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。