yǎn shù
意思解释：（Develop number）《易·系辞上》：“大衍之数五十，其用四十有九。”因以“衍数”指五十。 推算数字。
《易·系辞上》:“大衍之数五十，其用四十有九。”后因以“衍数”指五十。南朝宋颜延之《大筮箴》:“时至运来，当在三五;功毕官成，几乎衍数。”…
on easy · copulative : Core of of neon of alliance of Xu of of of of of the Pie that press Gou waiting till is pigheaded! Bake bath of Kuo of large bamboo hat waits till Cong our liver clear of nest of of D mill of Zhen of spurt of hole Hou when come to carry, should finish in 35; result the official is become, spread out almost several. ...
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