They use their own specialized knowledge and the special skill to provide all kinds of services for the society.

他们利用自己的专门知识和特殊技能来向社会提供各种形式的服务。

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In western music history, program is firm especially with Beethovens all in Vienna classic period, the harmony skill use is right now in their work day the " classic" call.

在西方音乐史中，将莫扎特与贝多芬都规划在维也纳古典时期，他们的作品中所用的和声手法即今天所称的“古典”。

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Detroit is now home to an outpost of TechShop, the Silicon Valley innovation incubator where people of all skill levels can use industrial tools and equipment to build their own products.

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