Pettenkofer's theory
[医] 佩滕科弗氏学说(病菌通过地下水传播疾病)
🧩 词语组成解析
🗣️ 情景例句
Could I trouble you with something for a moment please?
请问可以麻烦你一下吗？
Unfortunately, powerful companies to the most damage.
不幸的是，庞大的公司几乎都在制造公害。
As it is, they have been drilling for sixteen hours and they still have a long way to go.
实际情况是，他们已连续钻了16个小时了，但离钻透还早着呢。