contribution

n.贡献，捐献；捐献物；投稿

contractual, contradict, contradiction, contradictory, contradistinction, contraflow, contralto, contraption, contrapuntal, contrarily, contrariness, contrariwise, contrary, contrary to, contrast, contravene, contravention, contretemps, contribute, contribute to, contribution to (towards), contributor, contributory, contrite, contritely, contrition, contrivance, contrive, contrived, control, control tower, controllable, controlled, controller, controlling interest, controversial, controversialist, controversially, controversy, controvert,