认识的英文：
be acquainted with (a person)
know
be familiar with
recognize

参考例句：

dialectical movement of cognition
认识的辩证运动

Yes. She is Dr. Smith.
认识。她是史密斯大夫。

A child's cognitive development
儿童认识能力的发展.

Know someone by name; know of someone by name
只认识某人之名字

It is a big leap in the process of cognition.
这是认识过程的一次大飞跃。

This is the leap once of process of cognition
这是认识过程的一次飞跃。

He is the most obnoxious man I know.
他是我认识的最可憎的人

She's a dead ringer for a girl I used to know.
她酷似以前我认识的一个女孩.

Roses are red, violet are blue. Glad to know friends like you.
红玫瑰，紫苣苔， 高兴认识你这样的朋友。

You know Adam Trenton? Like to meet him.
你认识亚当·特伦顿？真想见见他。

acquainted是什么意思：
adj. 了解的，熟悉的
v. acquaint的过去式和过去分词

I am not acquainted with the lady.
我不认识那位女士。

She is not a friend, only an acquaintance.
她不是朋友，只是一位相识的人。

He is an acquaintance of mine.
他是我的一个熟人。

person是什么意思：
n. 人；身体；外表，容貌；人称

A wanton person.
淫荡的人

an outspoken person
直率的人

You are such a wicked person.
你真是个讨要的人。

know是什么意思：
v. 知道，了解，懂得；认识，熟悉；认出；体验；见到过，听到过

Learn not and know not
不学无术

Know/not know what is most important and act accordingly
能[不能]按轻重缓急行事

Do you know that lady?
你认识那位夫人吗？