assurance

Despite my repeated assurances, Rob still looked very nervous..尽管我再三保证，罗布看起来还是很紧张。

The director gave me his ______ that he would double my pay if I did my job well.句意： 主任向我保证， 如果我工作出色， 就给我双倍的薪水。warrant： 证明， 凭证； obligation： 职责， 义务； certainty： 明确， 确信。314certainty

The manager gave her his ______ that her complaint would be investigated. 句意： 经理向她保证， 她的投诉会得到调查的。assumption： 假定， 设想； sanction： 批准； insurance： 保险。114insurance

quality assurance,质量保证；品质保证

assurance company,保险公司

life assurance,n. 人寿保险；（保险公司付给的）人寿保险金；（被保险人缴纳的）人寿保险费

assurance coefficient,安全系数，保险系数；保证系数