Pettenkofer's tests
[医] 佩藤科弗氏试验(检尿胆汁酸)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Thanks for your understanding and cooperation.
谢谢你的理解和合作。
Why are you yelling?
你鬼叫个什么劲儿啊！
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，