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
That's OK.
不去不要紧。
Come in and make yourself at home.
请进，别客气。
Assuming that his family had been killed during an air raid, Hans settled down in a village fifty miles away where he had remained ever since.
汉斯以为全家人都在空袭中遇难，于是便在距此50英里外的一座村子里定居下来，直至当日。