Pollak's test
[医] 波拉克氏试验(检尿中黑素)
🧩 词语组成解析
🗣️ 情景例句
No, I don't have any hobbies. How about you?
没有，我没有任何的爱好，你呢？
He keeps on studying ecology.
他不断攻读生态学。
Later we learnt that there was a very important person on board.
后来我们才得知，飞机上坐了一位非常重要的人物。