I do not think I am up to this job and I feel very tired these days. 我觉得我不适合这份工作， 最近这段时间我很累。

I can not learn more in our company， I want morechallenges. 我在咱们公司已经学不到更多的东西 了， 所以我想要更多的挑战。

I hope our company will develop successfully soon. 我希望咱们公司能很快成功地发展起来。

I appreciate your understanding and thank you for your help with my work. 谢谢您的理解和在工作中给我的帮助。

I have learned much from my colleagues and I will miss them very much. 我从我的同事们身上学到了不少， 我会非常想念他们的。

I decided to quit my job because I want to study abroad. 我已经决定辞职 了， 因为我想 去国外学习。

I would like to seek development in other cities. 我想去其他的城市寻求新的发展。

I made up my mind to resign from my current job. 我决定辞去现在的工作。

I have made a tough decision to resign. 我做了一个困难的决定， 就是辞职。

Our company organizes a group tour every year. 我们公司每年都会组织一次集体旅游。