First, the concept of equity stock futures.

第一，公平股票期货的概念。

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A new concept, labor stock is quoted.

引用了“劳力股”这个新概念。

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Stock index futures are contracts to buy the concept of short selling is.

股指期货是合约，买进卖空是概念。

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Stock index futures are contracts to buy the concept of short selling is.

股指期货是合约，买进卖空是概念。

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