The government keeps a certain stock of money and grain for emergency needs.
国家对钱粮都有一定的库存，以备不时之需。
But after a certain growth stock is bound to enter after finishing even low stage.
而股票经过一定的增长后势必将进入整理甚至下探的阶段。
The two parties trade a stock index at a certain time and price in the future.
合约规定交易双方在未来的某一时刻，按照事先约定的价格买卖一定数量的股票指数。
The two parties trade a stock index at a certain time and price in the future.
合约规定交易双方在未来的某一时刻，按照事先约定的价格买卖一定数量的股票指数。
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