Accredit & authorize & commission---Accomplish&achieve

　　Accredit & authorize & commission

　　accredit-

　　1.1 强调相信某人，从而把责任托付给那人。(ps:特指委任大使)

　　1.2

　　Eg:

　　He was accredited to China.

　　authorize

　　2.2强调正式授权，强调正式，威严。

　　2.3

　　Eg:

　　You can’t be authorized to enter the security area.

　　commission

　　3.1约等于authorize

　　Accomplish&achieve

　　1.Accomplish:

　　1.1强调事情完成的成功性，以及完整性

　　1.2

　　Eg:

　　That’s it ,mission accomplished.(we have done what we aimed to do.)

　　2.Achieve

　　2.1强调过程曲折而最终得到的目标，地位，标准

　　2.

　　Eg:

　　Their background give him few of achieving at school.