/,kɒntrɪ'bju:ʃn; ,kɑntrə`bjuʃən/
n ~ (to/towards sth)
(a) [U] action of contributing 捐款; 捐助; 贡献; 促成; 投稿
*the contribution of money to charity 慈善捐款.
(b) [C] thing contributed 捐赠物; 稿件
*a small contribution (ie of money) to the collection 少量捐款
* The editor is short of contributions (ie articles) for the May issue. 编辑缺少五月号刊物用的稿件.
* (fig 比喻) The signing of such a treaty would be a major contribution towards (ie would help greatly to bring about) world peace. 签订这样一项条约, 是对世界和平的重大贡献.

n
[C]
something that you give or do in order to help something be successful
contribution to/towards
　Einstein was awarded the Nobel Prize for his contribution to Quantum Theory.
　The school sees its job as preparing students to make a contribution to society.
significant/substantial/valuable etc contribution
　Wolko made outstanding contributions to children's medicine.
[C]
an amount of money that you give in order to help pay for something
　a campaign contribution
contribution of
　A contribution of £25 will buy 15 books.
contribution to/towards
　Contributions to charities are tax deductible.
　You can make annual contributions of up to $1000 in education savings accounts.
[C]
a regular payment that you make to your employer or to the government to pay for things that you will receive when you are no longer working, for example health care, a pension etc
　income tax and national insurance contributions
contribution to
　Have you been making regular contributions to a pension plan?
[C]
a piece of writing, a song, a speech etc that forms part of a larger work such as a newspaper, book, broadcast, recording etc
contribution from
　a magazine with contributions from well-known travel writers
　a Christmas album featuring contributions from Carly Simon, Amy Grant, and others
[U]
when you give money, time, help etc
　All the money has been raised by voluntary contribution.