机构的英文怎么写啊，谢谢大家了

机构:
1. institution
2. organization
3. agency

Relative explainations:
<machanism> <mechanism> <outfit> <organ> <agcy.> <house> <establishment> <set-up> <setup> <device> <structure> <the Agency> <gadget> <hickey> <mrvhsnidm> <hicky>

Examples:
1. 理事是机构管理班子中的成员。
A trustee is a member of managing business affairs of an institution.
2. 议会是政府的一个机构。
Parliament is an organ of government.
3. 这机构得到联合国的资助。
The organization is backed by the UN.
4. 这一机构是在一家大企业倡导下开办的。
This establishment opened under the sponsorship of a large corporation.
5. 你们公司的机构是怎样的?
What's the set-up (like) in your company?
6. 该代理机构每年可为约2000名秘书安排工作.
The agency places about 2000 secretaries per annum.

a board that manages the affairs of an institution.
处理公共机构的事务的机关。
a specialized divisio