China boasts the world's earliest observatory, built in Nanking in 1385 in the Ming Dynasty ( 1368 A . D . - 1644 A . D . ), three centuries ahead of the Greenwich Observatory built in Britain in 1670.中国建有世界上最早的气象台....
His handwriting, from earliest young manhood, was flowing and graceful.他的字从小就写得流畅优美。The earliest operations employing this technique were fraught with dangers.最早使用这种技术的手术充满了危险。The very earliest sculptures were made under...