It is raining cats and dogs．中的 CATSANDDONGS中的什么意思

It is raining cats and It is raining cats and It is raining cats and 翻译It is raining cats and dogs! it is raining cats and dogs outside 英文翻译 it is raining cats and dogs outside now! it is raining cats and dogs是什麽意思 It's raining cats and it's raining cats and 句子It is raining cats and dogs now.句中的 cats and dogs It's raining cats and dogs It's raining cats and dogs outside 英语翻译It's raining cats and dogs 英语翻译It's raining cats and dogs 在英语中雨下的大为什么叫It is raining cats and dogs It is raining cats and dogs．中的 CATSANDDONGS中的什么意思 We can do nothing but stay at home,because it is raining cats and dogs outside.What does it is raining cats and dogsmean here?You may answer it in Chinese or in English.cats and It was raining cats and dogs and a stream had formed in the field.