assure和ensure的区别：含义不同、词性不同、用法不同。assure作为及物动词，含义为“保证”、“使确信”、“向…保证”、“查明”；ensure作为动词，含义为“担保”、“保证”、“确保”。
一、assure的中文意思及用法
assure作为及物动词，译为保证;确保;使确信;向…保证;弄清;查明;使确定。
例句：We were assured that everything possible was being done.
我们确信是在尽一切努力。
He assured himself of her safety.
他确定她是安全的。
Victory would assure a place in the finals.
胜利将确保能参加决赛。
What is the sum assured?
人寿保险额是多少？
I can assure you that the animals are well cared for...
我可以向你保证动物们得到了精心照顾。
You are assured of a warm welcome at this hotel.
你在这家旅馆肯定会受到热情欢迎。
I've assured him I have no plans to let him go
我向他保证，我绝对没打算让他走人。
And let me assure you I will use whatever force is necessary to restore order.
我向你保证，我将动用一切必要力量来恢复秩序。
二、ensure的中文意思及用法
ensure作为动词，译为确保;保证;担保。
例句：The book ensured his success.
这本书保证了他的成功。
Ensure there is a free flow of air around the machine.
要确保机器周围空气畅通。
They could not ensure a smooth transfer of political power.
他们无法保证政权的顺利交接。
We need to ensure the consistency of service to our customers.
我们对客户要确保服务的连贯性。
He's ensured that his children will want for nothing.
他确保他的子女将什么也不会缺少。
Satisfactory completion of the course does not ensure you a job.
课程学习的圆满完成并不能保证你能得到工作。
