It was a valuable resource of the colony, and it appeared to be inexhaustible.
这是小队的一个有价值的资源,而且看起来好象永远也吃不完。
It first appeared over 3,000 ago and represents China's solo musical instrument tradition.
它最早出现在3000多年前,代表了中国的独奏乐器传统。
The radio telescope thus appeared, and it is considered one of the greatest inventions in the twentieth century.
电波望远镜就这样出现了,它被认为是二十世纪最伟大的发明之一。
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