How can you be sure you aren't dispensable, just like my little sister?

你怎么能够确定你不像我的小妹妹一样是可有可无的呢？

youdao

When you receive a resume or job application, how can you be sure the applicant is telling the truth?

当你收到一份简历或者是工作申请表的时候，你是如何确定这个申请表里面所说的内容是真实的呢？

youdao

How can you be sure your intriguing idea is also something from which you can truly make a profit? There are three essential considerations?

那么怎样才能确保你那引人的想法可以真正获利呢？

youdao

But I'm sure you can easily see how these styrofoam balls could, in fact, be a mono layer of gold nuclei.

这个实验怎么工作的,我们先来做些计算，但我相信你们都已经。

麻省理工公开课 - 化学原理课程节选

Question: How can you be so sure, doctor?

问题，医生，你怎么能如此肯定？

耶鲁公开课 - 死亡课程节选

But with millions of apps to choose from, how can you be sure you and your employees are empowered with the right tools?

FORBES: How To Do Business On Your Brand New iPad

Keep investigating what you observe around you and be sure to come by next week to find out how you can maneuver through politics with savvy.

FORBES: How To Swim in Office Politics Without Drowning: Part One

Before answering the how-much-can-you-earn question, I want to be sure you understand the language of the direct-selling industry and know the difference between legitimate firms and phonies.

FORBES: Can You Really Make Money In Direct Sales?