puppy和dog的区别主要是指定的对象不同，puppy一般表示一岁一下的小狗、幼犬，傲慢小子等意思。dog可以表示看家狗、猎犬、雄狗、犬科动物、雄兽（狐、狼）、家伙、等含义，dog作动词使用时可以表示困扰、跟踪、尾随等意思。
puppy和dog的区别
puppy和dog的区别：dog意思：狗、雄狗；（狐、狼等的）雄兽、家伙；puppy主要指年龄小的狗狗，可以翻译为“幼犬”。puppy和dog的"区别主要体现在用法含义上，puppy主要指的是年龄小的狗狗，而dog-般指的是成年雄狗。
puppy和dog的例句
1、"Dog, big dog, puppy, puppy dog jump, jump, big dog, the dog is also called......" Word perfect.
2、All some girls have to do is give me the 'puppy dog' look, and it's game over.
3、Mountain white, road white, house white, even the little hen crouching under the eaves, puppy dog also white into open bamboo rice flowers.
4、Frogs, snails and puppy dogs all have tails.