when（ a ）dog bites（ a ）man,that is not news;but when（ a ）man bites （a ）dog ,that is news.为什么用a,a,a,a

when（ a ）dog bites（ a ）man,that is not news;but when（ a ）man bites （a ）dog ,that is news.为什么用a,a,a,a A barking dog never bites. A barking dog seldom bites.的句子成分 a barking dog seldom bites,这儿bites是vt吧,vt后能不加东西吗 rat nosy dog bites “A barking dog never bites.”怎样翻译成汉语?英语? 谚语A barking dog never bites 什么意思 A barking dog seldom bites.改反问句怎么改? 人咬狗 MAN BITES DOG怎么样 What kind of dog never bites?A.A small doWhat kind of dog never bites?A.A small dog B.An old dog C.A hot dog D.A kind dog 狗咬狗骨 DOG BITES DOG BONE怎么样 What kind of dog never bites? 英语翻译WHEN a dog bites a man,it usually doesn't make news.However,this saying changed when Beijing and several other Chinese cities announced the Civilized Dog Raising campaign (文明养犬活动) in late November and December.The government A smalldog barks loudly but does not bite,A big dog bites but does not bark翻译 脑筋急转弯：1 What's black when it is clean and white it is dirty?2 What kund of dog never bites? Does and preventing dog bites的中文翻译是什么? what kind of dog never bites?猜谜语 英语翻译A man walks into a shop and sees a cute little dog.He asks the shopkeeper,Does your dog bite? The shopkeeper says,No,my dog does not bite. The man tries to pet the dog and the dog bites him.Ouch, he says,I thought you said your dog