But we need to add in homeland security event so let's find the event for Friday of the following week.

但我们要加入国家安全的时间,那么我们可以安排到,下星期五。

普林斯顿公开课 - 国际座谈会课程节选

But it's very safe. However, you have to remember that it's still New York,

但它非常安全。然而你还是要记得，这里是纽约，

在上西区 - SpeakingMax英语口语达人

Fear, you will remember is associated with the desire for security, order, rationality, and peace. Pride is connected with the love of glory, honor, recognition and ambition.

要知道，人的恐惧是与其内心对安全,秩序，理性与和平的渴望联系在一起的，而自豪是与荣耀，声誉，志向与他人的认可,联系在以一起的。

耶鲁公开课 - 政治哲学导论课程节选

Say the president said he wanted to focus on homeland security or immigration.

比如说总统说,他要集中处理国家安全或者移民问题。

普林斯顿公开课 - 国际座谈会课程节选

If the vehicle in the unfortunate circumstances of a collision, has to be able to maintain the security of the hydrogen which means more mass, which means a lot of the efficiency is being squandered What's the environmental impact of hydrogen production?

如果车辆,在碰撞中发生了不幸，要仍然能够保持氢气的安全性的话,意味着需要更多的质量，也就是说大部分效率被浪费了,制氢对环境有什么影响呢？

麻省理工公开课 - 固态化学导论课程节选

Make sure you fasten your safety belts.

一定要系好安全带。

Make sure 课堂 - SpeakingMax英语口语达人