assurance
n.保证，担保；（人寿）保险；确信；厚脸皮，无耻
网络解释.保证；保险；担保；确信
词形变化:
复数：assurances
security insurance inspiration proof pledge conviction certainty poise absoluteness warrant confidence
双语例句
1. 1 . The EU is now acquiring greater assurance and authority.
现在欧共体越来越有自信与权威性了。
来自柯林斯例句