《资治通鉴·晋纪·晋纪二十二》
前秦国主苻生梦见大鱼吃蒲草，另外长安城里也有谣谚说： 东海大鱼化为龙，男皆为王女为公。 
秦主生梦大鱼食蒲，又长安谣曰： 东海大鱼化为龙，男皆为王女为公。 
Former Qin's Lord Fushen dreamed of a big fish eating cattails, and there was also a rumor in Chang'an that: a big fish in the East China Sea turned into a dragon, all males became kings and all females became dukes.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 秦主生梦大鱼食蒲，又长安谣曰： 东海大鱼化为龙，男皆为王女为公。  [/INST] 前秦国主苻生梦见大鱼吃蒲草，另外长安城里也有谣谚说： 东海大鱼化为龙，男皆为王女为公。 </s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 秦主生梦大鱼食蒲，又长安谣曰： 东海大鱼化为龙，男皆为王女为公。
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前秦国主苻生梦见大鱼吃蒲草，另外长安城里也有谣谚说： 东海大鱼化为龙，男皆为王女为公。
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