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By the 17th century, the rulers of Europe had started using fireworks as a way of marking royal occasions.

到了17世纪，欧洲的统治者们开始用烟花来纪念皇室的重要时刻。

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Both the Struts version and the Rails version handle a validation error in the same way: Render the page again, with error messages marking the form fields that need to be corrected.

Struts和Rails采用了同样的方式来处理验证错误：重新渲染相应的页面，并将需要改正的表单输入域用错误信息标识出来。

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The national park's authority is to improve the way marking and mow the bridleways which have become overgrown with heather and bracken.

BBC: North York Moors park tracks given clearer markers

They range from grandfathers with traditional flowing sarongs hanging over their bare feet to teenagers clad in polo shirts and trainers, all climbing the 5, 000-odd stone steps that are illuminated by electric lights throughout the night, a glowing white line spiralling up the mountain and marking the way to the top.

BBC: Getting to the heart and soul of hilly Sri Lanka

He did not draw the skin incision to be made with the sterile marking pen the way the other professors did.

NEWYORKER: Personal Best