assurance
英 [ə'ʃʊər(ə)ns]
美[ə'ʃʊrəns]
	    - n. 保证,担保;(人寿)保险;确信;断言;厚脸皮,无耻
 
英英释意
- 1. freedom from doubt; belief in yourself and your abilities;
 - "his assurance in his superiority did not make him popular"
 - "after that failure he lost his confidence"
 - "she spoke with authority"
 
- 2. a binding commitment to do or give or refrain from something;
 - "an assurance of help when needed"
 - "signed a pledge never to reveal the secret"
 
- 3. a statement intended to inspire confidence;
 - "the President's assurances were not respected"
 
- 4. a British term for some kinds of insurance