improver

• 名词，指改善者或改进者，即致力于改善社会福利的人；也指能提高某物质量或性能的成分或添加剂。

A noun referring either to a person who works to improve social welfare or to a component or additive that enhances the quality or performance of something.

1. Social ReformerB2formalpolitical

   A person who actively works to enhance human welfare and advance social changes.

   社会改革者

   • The 19th century saw many improvers campaigning for better living conditions.
   • She dedicated her life as an improver, fighting for equal rights and education.
   • The foundation supports local improvers who tackle poverty issues.

   同义词activistaltruistbenefactordo-gooderhumanitarianphilanthropistreformersocial reformerutopian

2. Additive or EnhancerB2formaltechnical

   A component or substance added to a product to increase its quality, performance, or effectiveness.

   改良剂

   • Bakers often use bread improver to get a softer crumb and longer shelf life.
   • This fuel improver reduces engine wear and increases efficiency.
   • Soil improver enriches the ground with nutrients for better crop growth.

   同义词additiveboosterconditionerenhancersupplement

   反义词adulterantcontaminantimpurity