improbable
	英 [ɪm'prɒbəb(ə)l]
美[ɪm'prɑbəbl]
	    
	
    - adj. 不大可能的,未必确实的;不可信的;未必会发生的
 
    考试真题
	
	- A good system is one that keeps that worst-case setting as improbable as possible while also offering strong protection in the event of a less-extraordinary attack.
出自-2016年12月阅读原文