RT，今天同学问我的～一时答不出来。帮个忙哈

BE FAMILIAR WITH 熟悉
know:
1. [ not continuous] to be familiar with or have experience and understanding of:[不持续] 熟悉或有过交往和了解
I've known Daniel since we were at school together.
自我们一起上学时,我就认识了丹尼尔.

2.[ not continuous](ALSO know about) If you know a subject, you are familiar with it and understand it:
[不持续](也用know about) 如果说你know 一门学科,那你就是熟悉和了解那门学科.
Do you know about computers?
你熟悉电脑吗?
She knows her subject inside out
她完全熟悉她的学科.

知道:
3.I don't know anything about this.

例句翻译自：
(from Cambridge Advanced Learner's Dictionary)



总结:
1.know认识----了解
2.know about 熟悉------掌握
2.know sth. about it知道