represented a time of promise. "This could not be happening" was the sentiment expressed as a growing crowd gathered around that black-and-white TV set.

VOA: special.2009.08.16

So it is my promise to you and it is the huge staff's promise to you that we will absolutely get you through this course and you will have a good time doing so.

所以我对你们承诺，也是所有教员的承诺：,你们绝对能够通过这门课程,并且在课程中度过一个愉快的时光。

哈佛公开课 - 计算机科学课程节选

According to a time-honored tradition in finance, it says that it's a promise to pay $1, but it's not worth $1 today.

由于资金有时间价值,他说他承诺支付一美元,但在此时此刻它并不值一美元

耶鲁公开课 - 金融市场课程节选

That is, promise that they will do well-- you see this all the time.

例如他们承诺能够获得高额收益率,你时常能听到这种论调

耶鲁公开课 - 金融市场课程节选