A freshman textbook will have dozens of contributors, from subject-matter experts through graphic and layout artists to expert reviewers and classroom testers.
2019年12月四级真题（第三套）阅读 Section C
Nadeau says sugar and processed foods are big contributors to the rising diabetes rates among children.
2018年12月四级真题（第一套）阅读 Section B
英语六级真题
Each burning season in the Amazon, fires deliberately set by frontier settlers and developers hurl up almost half a billion metric tons of carbon a year, placing Brazil among the top five contributors to greenhouse gases in the world.
出自-2013年6月阅读原文
What makes Brazil one of the world's top five contributors to greenhouse gases
出自-2013年6月阅读原文
柯林斯高阶英汉双解学习词典释义
N-COUNT
(尤指不愉快事件的)促成因素，原因之一
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.