You need to check each commodity or futures contract since each of them is unique.

你必需去留心每件商品或期货合同，因为它们每一份都是唯一的。

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You need to check each commodity or futures contract since each of them is unique.

你必需去留心每件商品或期货合同，因为它们每一份都是唯一的。

youdao