All these steps, including the tricky one of recovering sugar from cellulose, can be done already, but not cheaply enough to produce tens of billions of gallons a year.

所有这些步骤，包括那个有技术含量的从纤维素中提取糖类，都已经可以实现，但成本较高还不能实现工业化。

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To be sure, the critically needed recapitalization will not come cheaply.

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It must not look cheaply made, which means close attention to the heft and smoothness of hardware, as well as the finishing of seams and the interior.

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But the new drugs have not come cheaply.

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