contributor
/kənˈtrɪbjuːtə(r)/noun
1- a person or thing that contributes something, in particular捐献者, 捐助者, 尤指：
1.1
- a person who writes articles for a magazine or newspaper撰稿者, 投稿者。
1.2
- a person who donates to a cause捐赠者。
1.3
- a causal factor in the existence or occurrence of something促成因素。