Snakes and crocodiles are both reptiles.蛇和鳄鱼都是爬行动物.The children walk in crocodiles from the schoolhouse to the dining-room for lunch.孩子们排队从校舍去餐厅吃午饭。Snakes, lizards, and crocodiles are reptiles.蛇 、 蜥蜴和鳄鱼是爬行动物....
中国与朝鲜的边界已正式划定了.The border between China and Korea has been formally delimited.朝鲜和中国只隔一条鸭绿江.Korea and China are separated by only the Yalu River.朝鲜人民和我们祖国的人民不是一样的 吗 ?Aren't the Koreans the same as our own countrymen?...