1
insure sth
及物动词，表示给某物投保。
You should insure your car before driving it.
你应该在开车前给车上保险。
给…投保；为…保险
insuring — present participle of insure
先理解核心含义，再看它在真实句子里的用法。
给…投保；为…保险
To protect someone or something by buying an insurance policy that pays for losses, damage, or injury.
You should insure your car before driving it.
你应该在开车前给车上保险。
为特定风险提供补偿；通常通过保单约定在事故、盗窃等不良事件发生时赔偿经济损失
To provide for compensation if some specified risk occurs. Often agreed by policy (contract) to offer financial compensation in case of an accident, theft or other undesirable event.
经营保险业务；投保
To deal in such contracts; subscribe to a policy of insurance
insure
Base
原形
insures
3rd person
第三人称单数
insuring
-ing
现在分词
insured
Past
过去式
insured
Past participle
过去分词
I insure my car every year.
我每年都给车投保。
She insured the package yesterday.
她昨天给包裹投了保。
He is insuring his house now.
他现在正在给房子投保。
规则动词
You should insure your car against theft and accidents.
你应该为你的汽车投保盗窃和事故险。
He insured his house for a large sum of money.
他为他的房子投保了巨额保险。
Please insure that all the doors are locked before you leave.
请确保你离开前所有的门都锁好了。
及物动词，表示给某物投保。
You should insure your car before driving it.
你应该在开车前给车上保险。
表示投保以防某种风险。
We insured our house against fire and flood.
我们给房子投保了火灾和洪水险。
不及物用法，常后接against。
Many people insure against theft.
许多人投保以防盗窃。
意同ensure，后接that从句。
Please insure that all doors are locked.
请确保所有门都锁好。
Not this
Please insure that the door is locked before leaving.
Use this
Please ensure that the door is locked before leaving.
当表示“确保”时，应用“ensure”而非“insure”，后者主要用于保险语境，避免语义混淆。
Not this
I insured my house for fire damage.
Use this
I insured my house against fire damage.
表示“投保以防某种风险”时，介词应用“against”而非“for”；“for”后通常接保险金额。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
为…投保以防
You should insure your luggage against loss or theft.
你应该为行李投保以防丢失或被盗。
为汽车投保
He insured his car with a reputable company.
他在一家信誉良好的公司为他的汽车投保。
购买人寿保险
She decided to insure her life for a large sum.
她决定购买高额人寿保险。
为财产投保
It is wise to insure your property against fire.
为财产投保火险是明智的。
确保
Please insure that all windows are locked before leaving.
请确保离开前所有窗户都已锁好。
投保以防
You should insure your house against fire.
你应该为你的房子投保火灾险。
为自己投保以防
He insured himself against loss of income.
他为自己投保以防收入损失。
确保未来
Getting a good education will insure your future.
接受良好教育将确保你的未来。
确保国内安宁
From the Preamble to the United States Constitution. Here 'insure' means 'ensure'.
出自美国宪法序言。此处的'insure'意为'确保'。
Use insuring naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆解为in sure（进入确定），想象投保后进入安全确定的状态。
通常用于保险相关语境，多用于商业或正式场合。常见语境：购买保险、确保安全。
Ensure and assure rhyme with insure (all share /-ʃuə/). Censure, treasure, measure, and pleasure share the same spelling chunk -sure but sound different: censure has /-ʃə/, while the others have /-ʒə/.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.