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 just stopped by your office in the bank.
我去银行顺便到你的办公室拜访你。
The thread breaks where it is weakest.
线断常在最细处。
No. The next development was to carve the characters on a piece of wood.
是的，不象。下一步的发展是将汉字刻在一片木板上。