俗话说 :猫狗碰面就打架。为什么呢 ?我觉得奇怪 ,决定亲自动手做一个实验。我将一只猫和一只狗装到一个大笼子里 ,在旁观观看。开始 ,那只猫和那只狗都各玩各的。玩了一会儿 ,也许是无聊吧 ,那只猫跑到狗面前 ,伸着前爪 ,嘴里发出“噜噜”的声音 ,好像在说 :“咱们一起玩吧 , As the saying goes: cats and dogs meet on the fight. Why? I find it strange that I decided to do an experiment myself. I put a cat and a dog into a big cage and watch on the sidelines. At first, both the cat and the dog played each one. Play for a while, maybe it is boring, that cat ran to the dog, stretched out the forepaw, mouth, “Lulu” sound, as if to say: "Let’s play together,