He always brags about his achievements.

他时常炫耀他（取得）的成就。

He is so careless that no one wants to work with him.

他如此粗心以致无人愿意和他共事。

You should not say bad words about your colleagues behind their back.

你不应该在背后说同事的坏话。

Mutual respect is vital in establishing relationship with others.

相互尊重在和别人建立关系过程中至关重要。

The relationship among colleagues is more complicated than the campus relationship.

同事之间的关系较同学关系复杂得多。

He is the soul of the team.

他是团队的灵魂。

A competent colleague sometimes poses threat to you.

有能力的同事有时对你是一种威胁。

The members of our office get along like a family.

我们办公室的同事亲如一家。

He is younger than his age,but he is quite professional.

看上去他比（实际年龄）年轻，但是他非常内行。

My colleague Todd is much of a friend and he is ready to help me any time.

我的同事托德真的是个好朋友，他随时都准备帮助我。

A good colleague is supposed to be efficient and cooperative.

好的同事应该是有效率且有合作精神的。

Working in a project is a good practice of team spirit.

在同一个项目工作是团队精神的最好锻炼。