contribute
vi.捐款，贡献;(to)有助于;投稿 vt.捐献
City employees cannot contribute to political campaigns.市政府雇员不得捐助政治宣传活动。
contribution
n.贡献，促成作用;捐款，捐献物;投稿
The school sees its job as preparing students to make a contribution to society.这所学校认为它的责任是培养学生为社会作贡献。
controversy
n.争论，辩论
a political controversy政治争议
control
n.控制;自制;操纵装置 vt.控制;克制
Artists like to have some control over where their works are hung in a gallery.
艺术家希望对自己的作品挂在美术馆的什么地方有些发言权。
