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
in the children's ward.
在小儿科病房那边。
Money spent on the brain is never spent in vain.
智力投资，决非虚掷。
Yes. You can help me do the shopping.
当然可以。你可以帮我一起选。