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
I shall do as I please.
我喜欢怎么做就怎么做。
No. I went to California for a few weeks.
没有。我上加利福尼亚去了几个星期。
This is supposed to induce pleasurable sensations in the elephant,
据说这是为了使象产生愉快的感觉，