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
Do you frequently surf the net?
你经常上网吗？
See you tomorrow.
明天见。
Sure. We were in the same class.
当然认识。我们同班呢。