lessen ['lesn] 

v. 减少，变小，减轻

词根：less少+en表动词→使……少就是减少，变小

例句学习

• 1 . A gradation of a color made by adding white to it to lessen its saturation. 
  淡色通过加白色使浓度变化而形成的一种颜色分级
• 2 . Something that separates potentially antagonistic entities, as an area between two rival powers that serves to lessen the danger of conflict. 
  缓冲物，缓冲地带可用来隔离潜在的对抗性因来的东西，如面敌对势力用来减轻冲突危险的地带
• 3 . The pain was already lessening. 
  疼痛已在减轻。