contribute

contribute  [kn'tribju:t]       vt. /vi. con(一起) + tribute(给) — contribute(贡献)1. to give sth, especially money or goods, to help sb/sth  捐献，捐赠（尤指款或物）；捐助    2. to be one of the causes of sth  是…原因之一
contribute
3. to increase, improve or add to sth  增加；促进；添加（到某物），有利于4. to write things for a newspaper,magazine,or a radio or television programme; to speak during a meeting or conversation, especially to give your opinion  （为报纸、杂志、电台或电视节目）撰稿，投稿；（在会议或会谈期间）讲话，（尤指）发表意见