20世纪20年代，一位古生物学家在一个装着蛋的巢穴附近发现了一只小恐龙的化石遗迹。

In the 1920s, a paleontologist discovered the fossil remains of a small dinosaur near a nest containing eggs.

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油画颜料在十五世纪取代蛋彩的时候, 画家开始能够处理一些诸如人像画等困难的题材, 因为不象蛋彩,油画颜料可以混合和覆盖.

When oil paint replaced tempera in the fifteenth century, it helped painters to deal with difficult subjects like the human figure because, unlike tempera, oil can be blended and overpainted.

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在十九世纪的美国，许多酒吧间有一个免费的午餐台，摆着肉片、面包、煮熟的蛋和其它好吃的。

In nineteenth-century America, many saloons had a free lunch counter stocked with sliced meats, breads, hard-boiled eggs, and other good things to eat.

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