contribute to do 还是 contribute to doing?

contribute to do 还是 contribute to doing? contribute to... contribute to how do we contribute to this issue? 关于contribute to contribute sth to也可以说成contribute to contribute to造句并解释 contribute to的四个意思? Contribute oneself to后接动词原型还是ing形式? 英语翻译必须使用（help to;contribute to) lead to 和 contribute to 的区别 subscribe to与contribute to的区别