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(1)保險，投保(make a formal agreement and pay money to an insurance company to protect one's life，property，etc against sickness，death，loss，damage，etc)[T+n，T+n+prep(against)，I]：He is～d.他投了保。Is your car～d?你的汽車保險了嗎? The goods were fully～d. 這些貨物都投了保?！玱ne's home against fire /theft /accidental damage 為自己的家?；馂?zāi)/失竊/意外損失險;The insurance company～d his house against fire. 保險公司為他的房屋保了火險?！玱ne's employees (oneself) against accidents/premature death/prolonged illness 為雇員(自己)投保意外事故/早逝/長期患病險;～one's property/the contents of one's house for $60，000 為自己的財產(chǎn)/家庭財產(chǎn)保險六萬美元;～one's life/oneself for $50，000 為自己投保五萬美元人壽險;～at a low premium 付低額保險費保險;～against death 保壽險;〖同〗secure;

→ the in′sured n 被保險人(者);

(2)預(yù)防(prevent sth unpleasant from happening or protect oneself in case it happens)[T+n+prep(against)]：More care will～you against making so many mistakes. 多加小心你就不會犯這么多的錯誤?！玜gainst defeat 防止打敗仗;In years of good rainfall they expand their stocks to～against drought. 在雨水充足的年份，他們增加蓄水量以防干旱。

→ in′surer n 保險商(公司);承保人;in′surable adj 可被(適于)保險的;in′surance n;

【辨異】insure 與assure 和 ensure的區(qū)別見ASSURE。