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
What are you up to?
你在忙些什么？
He used to live in my neighborhood.
他曾与我是邻居。
She got very angry and started shouting at me.
她气极了，冲我大喊。