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这有一个故事:马戏团里,有种怪现象。年幼的小象都是用粗壮的铁链拴着,而成年的大象则用一个普通的铁链拴着。这根普通的铁链实际上
Here’s a story: there’s a strange phenomenon in the circus. Young elephants are tied with stout iron chains, while adult elephants are tied with an ordinary iron chain. This ordinary chain is actually