1.Promotion in the job was by seniority.

1.这种工作得按资历。

2.The officers were listed in order of seniority.

2.员列名以职位高低为序。

3.I sacrificed two years’ seniority by taking the overseas posting.

3.由于去国任职, 我牺牲了两年的资历。

4.It's strange that people who take advantage of their seniority are likely to come a purler.

4.很奇怪，老卖老的人，特别容易栽跟斗。