as.sure

assure的音标和读音：
DJ音标发音： [əˈʃuər]
KK音标发音： [əˈʃʊr]

assure的词性：
v.tr.（及物动词）

1. To inform positively, as to remove doubt:
向…保证：告知确实如此，以解除怀疑：

assured us that the train would be on time.
向我们保证火车将会准时到达

2. To cause to feel sure:
使确信：

assured her of his devotion.
使她确信他的挚爱

3. To give confidence to; reassure.
给予信心；使放心

4. To make certain; ensure:
确实；保证：

“Nothing in history assures the success of our civilization”(Herbert J Muller)
“历史上没有任何东西保证我们文明的胜利”(赫伯特J马勒)

5. To make safe or secure.
使安全，使稳固

6. Chiefly British To insure, as against loss.
【多用于英国】 给…保险，以防意外

assure的词源：

7. Middle English assuren
中古英语 assuren

8. from Old French assurer
源自 古法语 assurer

9. from Vulgar Latin *ass?c^?r3re [to make sure]
源自 俗拉丁语 *ass?c^?r3re [确认]

10. Latin ad- [ad-]
拉丁语 ad- [前缀，表“朝，向”]

11. s?c^?rus [secure] * see secure
s?c^?rus [安全的] *参见 secure

assure的词性：
adj.（形容词）

assure的词性：
n.（名词）

assure的用法：

12. Assure, ensure, and insure all mean “to make secure or certain.” Only assure is used with reference to a person in the sense of “to set the mind at rest”:
Assure,ensure 和 insure 都指“使稳固或有把握。” 只是assure 用来指人，有“使某人放心”的意思：

assured the leader of his loyalty.
使领导确信他的忠诚。

13. Although ensure and insure are generally interchangeable, only insure is now widely used in American English in the commercial sense of “to guarantee persons or property against risk.”
虽然ensure 和 insure 在一般情况下可以互换， 现在只有insure 广泛用于美国英语中，商业中意指“给人或财产保险以防意外。”