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
Looking at the houses.
看房子。
I was in the hospital for several weeks.
我在医院里住了几个星期了。
I feel like eating an ice-cream.
我想吃一个冰淇淋。