我想问下 some people have a pet,some people have pets 有什么区别

我想问下 some people have a pet,some people have pets 有什么区别 some people have to learn some people wait there turn 中文翻译下谢 different people have different memories.some people have ve why do people have pets? some people always have a stomachache because they are too() some people always have a stomachache because they are too ( #49.Some people never have a thought ____ tomorrow. Sometimes some people have s______dreams at night. some people have an objection to tea Some People (Have All The Fun) 歌词 some people keep unusual animals as pets. 翻译some people asecond language easily.other people have trou