Although the bag is very small, it costs lots of work and materials.

这个包虽然很小，但是很难做，也很浪费材料。

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Companies also buy futures to guarantee costs for materials.

公司可以购买期货在保证原料价格。

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Companies also buy futures to guarantee costs for materials.

公司可以购买期货在保证原料价格。

youdao