1.He is a well-rounded person individual.

他是一个多才多艺的人。

well-rounded多才多艺的全才

2.He is such an outstanding student that I believe he is going to make it big in his career.

make it big成功

3.I adore him because he is a family man and a devoted father.

a family man一个顾家的男人

a devoted father一个尽心尽责的父亲

4.There was a guy in my office that I was not a fan of because I thought he was a bit big-headed and full of himself.办公室里有一个我不喜欢的家伙，因为我觉得他有些傲慢和自以为是，

not a fan of不喜欢

big-headed傲慢的自大的

full of oneself自以为事

考生也可以先介绍自己的外观

I am not quite tall.

Comparing(注意这个形式)with my classmates,I am not the shortest one.

I have a round face with dark eyes.

My hair is dark and straight.

I am a little bit thin.

I am not as fat as my brother.

I am always wearing a suit.

然后再介绍自己的兴趣

My hobby is playing basketball.

My favorite activity is to go roller skating.

I usually play computer games with my roommates.

I can surf on the internet all day.

I am good at playing Chinese chess.

I am interested in English writing and reading.

I am Tom`s fans.

就是描述自己的性格

I am a friendly person.

Many person say I am a nice guy.

I am trying to be a cool man.

My father always says that I am cute but I am lazy.

“Honest”or”polite”can describe me.

I like a peace and quiet place.

I personally do not like to go out very often.