Braun Oral-B electric toothbrush by the oral care experts painstakingly researched and 10% of its small motorized and easy grip handle , easy to operate, easy to clean teeth in the side.

电动牙刷是由口腔护理专家精心研制成的，其细小刷头和易握手柄，易于操作使用，同时容易清洁牙齿内侧面。

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Now 72 and a resident of Beijing, he's in New York this month to receive the Manhattan Institute's Hayek Prize for "Tombstone, " his painstakingly researched, definitive history of the famine.

WSJ: The Weekend Interview with Yang Jisheng: Reading Hayek in Beijing

His type of literary journalism deeply researched, nuanced and painstakingly wrought seems to be, sadly, a thing of the past.

FORBES: Notable Fall Sports Books