cover up works的意思|示意

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。

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。

The woman works hard to make up to cover up own facial expression.

女人用心化妆来掩饰自己的脸容。