Invalidate/GRE/Barron
			
			
			
			
								
				来自我不喜欢考试-知识库
				
								
				
				
																
				
				
								
				
[编辑] invalidate
- weaken; destroy; make invalid; nullify
- 例句: The relatives who received little or nothing sought to invalidate the will by claiming that the deceased had not been in his right mind when he signed the document.