翻译：工资证明：我公司员工M在2008年年薪酬为人民币X元整。

要注意格式:

抬头靠中间写 RE: Salary certification

空一行,接下来这么写:
This is to confirm that Mr. M is working in XXX company. His annual salary of 2008 was RMB 100,000.
或
This is to confirm that Mr. M, who is working in XXX company, has an annual salary of RMB 100,000 in 2008.

注意staff是一个复数词,且没有one of our staff这种用法
要说XXX company, 哪怕是用公司抬头纸也要这么说. 用 our company太不书面.

Salary certification

This is to certify that annual salary of our staff,Mr. M, is RenminbiXXXX in 2008.

Salary certification

This is to certify that the annual salary of our employee,Mr. M, is RMBXXX in 2008.

Salary certification: The annual salary of Mr/Mrs M,one of our staff, is RMBxxx in the year of 2008 。