1. He is already assured of the job and his interview is a mere formality.

　　他肯定已经获得了那份工作了，口头审查只是形式而已。

　　(sb. be assured of sth.)

　　2. Ensure that whatever you gain now will be for keeps.

　　确保你现在所获得的一切永远不会失去。

　　(ensure that...)

　　3. Words of mouth being no guarantee, a written statement is hereby given.

　　口说无凭，立字为据。

　　4. Think twice before you insure against accident, sickness and redundancy.

　　在为意外事故、疾病与事业投保之前一定要考虑清楚。

　　5. He tried to reassure me that my mother would be okay.

　　他试图让我相信我母亲不会有事的。

　　6. If you make a promise, you should keep it.

　　如果你许下诺言，就应该信守诺言。