If you are offering a commercial or open source library for .NET developers, including an integrated help file is a great way to show your professionalism.

如果你为.NET开发者提供了收费或者开源的类库，那么在其中包含帮助文件会显示出你的专业性。

youdao

He points out that despite great changes since his 1970s and 80s playing days, including the introduction of full professionalism, "community" clubs and volunteers remain at the heart of rugby union in England.

BBC: Rugby union ready for World Cup and Olympics spotlight

This is particularly true in the public sector, including the universities, where professionals will stay only if professionalism counts.

ECONOMIST: Emigration

Mackey said the vast majority of the force's 50, 000 or so staff, including 32, 000 officers, "act with the professionalism and high standards we expect, " and that unacceptable behavior would be challenged.

CNN: London's Metropolitan Police faces racism claims