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
I haven't dated any one else since her mother died.
自从她母亲去世之后 我从没有和别人约会过。
The reporter has a good story.
这个记者采访到了精彩的记事。
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。