Sometimes original art works appear questionable or inauthentic because they've had so many restorers add touch-up layers to cover up damage, damage from the paint having deteriorated over time.

有时候艺术品真迹看起来是赝品，是因为很多修护人员添加了很多层保护膜，以覆盖油画上的损伤；而随着时间的推移，画作上损坏的地方已经恶化了。

youdao

I think a Kanban system can scale to cover the full value stream, in which case it works as a live visualization of the value stream.

我认为看板系统可以扩展至覆盖整个价值流，在这种情况下，它是价值流的一个活生生的视觉表现。

youdao

Okay. And let's cover these also up, because this sulfuric acid ugh! So your lead battery in your car works with the same idea, except this is lead oxide and this is lead.

好吧，把这些盖起来，因为这硫酸,你车里的铅蓄电池,也是一样的工作原理，除了这是一氧化铅而这是铅。

youdao

It will be an early test of whether health reform works to cover the uninsured and stays within its budget.

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Then they cover how well the executive works with colleagues and how his group fits inside the company.

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Copyright protection is needed partly to cover the costs of creating and distributing works in physical form.

ECONOMIST: Why the rules on copyright need to return to their roots