make a contribution to跟动词是用do还是doing?为什么?怎么区分to 是介词还是不定时中的to呢?

make a contribution make a contribution make a contribution to make a contribution to中的contribution可换成devotion吗? make a contribution to+do还是ing make a contribution to .do还是doing? make a contribution to 造句如题 make a contribution to do sth 和make a contribution to doing sth 有什么区别 make a great contribution to do还是to doing? make a contribution为什么后面加to doing 是make a contribution to 还是make contribution to?若两个都对两者有什么区别?make a contribution to 是可数的吗? 那make contribution to 算是错的吗? 请详细解释一下~~~ 谢谢 we must make a contribution to make our school more beautiful.改错：＿＿＿＿ make contribution to contribution要加s吗 Everyone should make a contribution to ___ the environment A protecting B protects C protection i would like to make a request for a contribution翻译 Together,individuals can make a big difference.Please remember:your contribution counts.翻译 make a contribution to中to后面的作什么成分 Everyone should make a contribution to __(protect)the world.并说明理由