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有一个人买了10头驴子,当他骑在一头驴上数数时,发现只有9头驴子,当他下来数时,就有10头驴子。于是他说:“我步
One man bought 10 donkeys. When he was counting on a donkey, he found only nine donkeys. When he was down, he had 10 donkeys. So he said: ”I step