A college education will enable me to specialize in a certain field of knowledge, such as medicine or law, preparing me to become a professional.

大学教育将使我能够专注于某些领域的知识，例如医学或法律，让我成为专业人士。

youdao

For those looking to hire, you can post a Twitter update asking your followers if they know anyone with skills in a certain field.

如果要招聘，可以发布一个Twitter更新，询问您的追随者是否知道有人具有某个方面的技能。

youdao

You might be a trader doing business part-time, supplementing your full-time income by putting to use your expertise in a certain field.

也许你在这行就做个兼职，利用你在某领域的特有专长赚外快(为你的全职工资添点补助)。

youdao

The students are creating a network, motivating people to join their learning community, they are able to track inside this network who learns what faster than others, who is more knowledgeable in a certain field.

FORBES: Unishared: Revolution in Online Education Beyond Coursera, Edx, and Udacity

But just like in every other field of endeavor, there is a certain excitement around people that have great power.

FORBES: Thoughts On Power, Petraeus and Sex Scandals

Attaining advanced degrees in the field and recommendations from jobs and internships indicate a certain preparedness for dealing with patients, Rothbaum said.

CNN: Treating trauma victims may cause its own trauma