전문적 英語で:

Be professional about it.

Professional writers do not have a regular income.

A professional thief can jimmy a car door in no time.

Playing country-western music on guitar is real kid stuff to a true professional.

To become a professional banjo player, you need to spend thousands of hours practicing.

Because of his great professional skill, the lawyer has a large number of clients.

They are professionals. They know what they're doing, just let them get on with it.

The musical instruments and parts are completely professional quality! And yet the prices are lower than anywhere!

Mary was very impressed with the professional appearance of her new outfit.

You play the guitar quite like a professional, don't you?

The point we must clarify here is that the lines between amateur and professional in sport are beginning to disappear.

This is where it is vital for staff to have professional training.

You should get some professional advice about your finances. a professional athlete/musician, a professional attitude He looks very professional in that suit.

I must tell you that Dr Bruner is a very respected professional.