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NO-BOOK英語口語提高版 Lesson42
文本：
Lesson 42 Dog
1.It's raining cats and dogs.
2.They have a dog's and cat's life.
3.Even a dog has its day.
4.I'm working like a dog.
5.Don't put on the dogs.
6.Old dogs never learn new tricks.
7.Let the sleeping dog lie.
8.Everything is going to the dogs here.
