assure, ensure, 和 insure这三个词在含义上有很大程度的重叠，比较容易混淆。但其实仔细看它们的释义，还是有很大差别的。我们来一起看一看吧～

Assure：通常用来表示某人对...深信不疑。它一般指“很自信的告诉某人...，并且无可怀疑。”如果你想要使某人信服你，相信你，可以用“assure”。该词的宾语一般是人。例：

I assure you, I am not dead.
Can you assure me that you will be here?
Having never been on a plane before, Delilah was anxious. A more experienced traveler assured her that flying was safe.

Ensure：通常用来表示被保证、担保的...它指“确保某事会发生”。宾语一般接物，而不是人。如果你想采取行动来确保你想要的结果，用“ensure”。例；

To ensure your cooperation, we have posted armed guards throughout the facility.
I ensured our safety by locking the door.
Cooking meat to the proper temperature ensures that you don't become ill.

Insure：通常用于金融保险类内容中。它指“给…投保”。尽管，这个发音跟其它两个词的发音很相似，但是它在用法上更多地是用于金融协议这类文章中。例：

Tippecanoe Mutual will insure your vehicle for accidental damage or theft.
I make regular payments to a company so that my home is insured against damage. If lightning strikes my home, the company will pay me to compensate for the damage.

现在大家对这三个词的用法是不是已经有大致的了解了呢～

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