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n. 骰子游戏;孩童游戏的一种
n. 勒德洛铸排机(商标名称)
?卢道夫
卢道夫
门泽尔
伯格
鲁道夫·里希莫勒
By the time Ludolf van Ceulen died in 1610, he had spent many years of his life tediously calculating pi, resulting in only 35 accurate digits.
BBC: 3.14 and the rest
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。