contributor

🇬🇧/kənˈtrɪbjətə(r)/ 🇺🇸/kənˈtrɪbjətər/📚 4912 43四级六级托福gmat
You can use contributor to refer to one of the causes of an event or situation, especially if that event or situation is an unpleasant one. 造成 (不良后果的) 因素

noun [专属名词]捐赠者,作出贡献者;促成因素;撰稿人,投稿人

Old buses are major contributors to pollution in cities.
旧公交车是造成城市污染的主要原因。

单词造句: