Pollak's tests
[医] 波拉克氏试验(检尿中黑素)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
Two of a trade seldom agree.
同行是冤家。
The woman walked out of the shop angrily and decided to punish the assistant next day.
这位妇女怒气冲冲地走出了商店，决定第二天教训一下那个售货员。