insure vt. 給……保險(xiǎn) v. 確保
例句：Wesley's talent and dedication will insure his success.
衛(wèi)斯理的才氣和執(zhí)著將確保他成功。
insurance n.保險(xiǎn).保險(xiǎn)單，保險(xiǎn)業(yè)，保險(xiǎn)費(fèi)
例句：Did you claim on the insurance after your car accident?
出了車(chē)禍后，你向保險(xiǎn)公司要求賠償了嗎?
assure vt. 斷然地說(shuō)，保證，擔(dān)保
例句：I can assure you that your son will be here.
我可以向你保證，你兒子在這里會(huì)很快樂(lè)的。
assurance n. 確信，斷言，保證，擔(dān)保
例句：Sam gave me an assurance that it would be ready by Friday.
薩姆向我保證星期五一定準(zhǔn)備好。
ensure vt. 保證，擔(dān)保，使安全，保證得到 v.確保.確保，保證
例句：If you want to ensure that you catch the plane, take a taxi.
你要想確保能趕上那班飛機(jī)，就坐出租車(chē)去吧。
ensue vi. 跟著發(fā)生，繼起
例句：Many troubles ensued from this misunderstanding.
由此誤會(huì)產(chǎn)生了許多麻煩。
guarantee n. 保證，保證書(shū)，擔(dān)保，抵押品 vt. 保證，擔(dān)保
例句：We cannot guarantee the punctual arrival of trains in fogy weather.
霧天我們不能保證火車(chē)準(zhǔn)時(shí)到達(dá)。
warrant n.授權(quán)，正當(dāng)理由，證明，批準(zhǔn) vt. 保證，批準(zhǔn)，使有正當(dāng)理由
例句：The storekeeper warranted the goods as of the first quality at the lowest price.
店主保證貨物品質(zhì)第一，價(jià)格最低。