Pettenkofer's test
[医] 佩滕科弗氏试验(检尿胆汁酸)
🧩 词语组成解析
🗣️ 情景例句
A lot of people come to openings
许多人参加开幕仪式
He who has not tasted bitter knows not what sweet is.
不吃苦中苦，哪知甜中甜。
So it comes as a surprise to learn that giant fish are terrifying the divers on North Sea oil rigs.
因此，听说北海石油钻井平台上的潜水员受到巨型鱼类的恐吓，确实很让人吃惊。