And actually on terms of the dollar, I think you gotta be concerned about the dollar. -You do Dollar is our currency.

说到美元这个问题，我认为这才是我们应当担心的，-是吧,美元可是我们的流通货币呢。

斯坦福公开课 - 经济学课程节选

So I think after 10 hours, you don't really have to be concerned about that.

所以，现在才过了10小时，你完全没必要担心。

Don't 实战 - SpeakingMax英语口语达人

I am especially concerned about attendence, So if you have arch-practice these Tuesday afternoons and can't be here every week, you shouldn't take this course.

我很在意考勤，所以，如果周二下午,你有实践活动课,不能每周都出勤的话，建议你不要选这门课。

麻省理工公开课 - 电影哲学课程节选

You need to be concerned about our currency. -Alright.

我们应当密切关注美元的走向，-没错。

斯坦福公开课 - 经济学课程节选