Means, but what does d. o. He does come here every day. The boys do do their homework after school every day. · you know what m. d. Do come in and sit down. 请进来坐吧。 以上是依据我学生平时的困惑写出的,是否如你所愿呢。 如有答非所问,见谅哈。 Do和does的区别和用法区别是:do 是动词原形,用于第一人称、第三人称的复数 (i/you/we/they)。does 用于第三人称单数 (he/she/it) does 用于第三人称单数。do用于一般现在时且主语是复数we,they, Do their homework 做作业,do do their homework 确实有做作业,主语是 they ,故用 do 对do their homework中的do 进行强调:确实有做。 He did come here yesterday. Do (务必)come on time next time. · do是什么意思啊了 (do中文意思)1. Whats different and whats alike between these two kinds of health care providers? Do (务必)be careful next time.