同时，买进期货合同和卖出一个看涨期权的组合，叫做组合卖出看跌期权。

Also, a combination of a long futures contract and a short call, called a synthetic short put.

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墨西哥购买了看跌期权——令持有者有权以预订价格卖出石油的合约。

Mexico bought put options - contracts that give the holder the right to sell oil at a predetermined price.

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除了卖出大豆或者玉米的看涨期权，可以保持在这些市场里做空看跌期权并且卖出你的小麦看涨期权。

Instead of selling bean or corn calls, stay short the puts in these markets and sell your calls in wheat.

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