The program was important because it helped provide work for more than three thousand seven hundred professional artists who were unemployed.

VOA: special.2009.03.23

And it focuses on the theory and the application of positive psychology in various professional domains.

教学重点放在,积极心理学理论,及在各行各业的应用。

哈佛公开课 - 幸福课课程节选

or like, for, if I have like anything I want to learn in my professional life or whatever, it's really easily available.

或者，如果我在以后职业上有什么要学，也可以在这里很容易找到。

开放式的课程？ - SpeakingMax英语口语达人

"It's better and better. It's very professional this year. It used to be more mediocre-type stuff.

VOA: special.2009.08.05

So in fact, there are professional magicians who make it their business to debunk people who claim to genuinely be in contact with the dead and the like.

而事实上,有些专业的魔术师,主要揭露那些声称,能和死人沟通的人的秘密

耶鲁公开课 - 死亡课程节选

But it was also an attempt to establish a top professional level for soccer in America.

VOA: special.2010.06.02

I don't know how much you've seen, but quite often the way you learned physics earlier on in high school is probably different from the way professional physicists think about it.

我不知道你们对物理有多少了解,但你们以前在高中所学的物理知识,和资深物理学家们的看法,常常是很不一样的

耶鲁公开课 - 基础物理课程节选

Tournament director Michalak says wherever it stared, the sport is now governed by the Professional Disc Golf Association, which includes countries like Finland, France, Germany, and Spain.

VOA: standard.2010.08.03

But still is very professional and you can use it in any setting, business or casual.

但它也同样可以是很专业的表达，可以用在商务或是生活的各种语境。

Is it okay 课堂 - SpeakingMax英语口语达人

So Musorgsky knew this law of acoustics because he was a professional musician and was playing off of it to create this rather unusual and remarkable musical sound-scape here.

穆索尔斯基明白这个声学规律,因为他是位专业的音乐家,他通过制造这非凡卓越的音乐场景,表达了这个规律

耶鲁公开课 - 聆听音乐课程节选