v.  向…保证，使确信 ≈ reassure

v.  确保，保证 ≈ ensure

• assurance

  n.  担保，保证

  n.  自信，镇定

  n.  保险，〔尤指〕人寿保险 ≈ insurance

• assure yourself  弄清，查明

• the sum assured  人寿保险额

• life assurance  人寿保险

• The dealer had assured me of its quality.

  经销商向我保证过它的质量。

• Excellent reviews have assured the film’s success. 这部影片获得好评保证了它的卖座。

• I took steps to assure myself of her guilt.

  我采取行动查明她的罪行。

• He gave an assurance that the work would be completed by Wednesday.

  他保证星期三之前把活干完。

BrE /əˈʃʊə(r)/

NAmE /əˈʃʊr/