In the professional theatre, there is a tremendous need to prove that you're a pro.

在专业剧院里，证明自己是个专业人士是非常必要的。

《柯林斯英汉双解大词典》

The MacBook Pro is really Apple's creme de la creme, the no-compromises laptop for the Apple professional that absolutely needs the fastest, biggest portable system Apple has to offer.

MacBook Pro确是苹果系列的佼佼者，专业人士无疑需要最快，最大型的掌上系统，而这款便是苹果能为其提供的不二选择。

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Created to be the most challenging race for professional cyclists in American history the USA pro Cycling Challenge is set to cover nearly 500 miles in Colorado.

美国职业自行车挑战赛是美国历史上为职业车手设置的最富有挑战性的赛事，该赛事全程500多英里(800多公里)在科罗拉多山间举行。

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Excellent for low-light shooting conditions, the new VIXIA HF G20 camcorder model offers an enhanced HD CMOS Pro Image Sensor and professional-grade functionality.

ENGADGET: Canon's latest VIXIA camcorders stream and share with your mobile device

Ms McClarkin said there was a "lack of trust" in the current system and that there should be an obligation on member states to "pro-actively share information about professional qualifications".

BBC: Call to strengthen language rules in EU single market

From the editors of YCharts, which includes the just-released YCharts Pro Platinum for professional investors.

FORBES: Connect