This helps because the plastic cover keeps the stamps off the wet air.

这是有帮助的，因为塑料盖使邮票远离潮湿的空气。

youdao

A plastic cover around the house helps to keep the heat inside.

房子周围的塑料罩有助于保持住室内的热量。

youdao

It's this paper mend with a plastic cover and there's all these black magnetic particles here.

它是用这种纸以及一种塑料覆在上面，这里还有一些黑色磁性粒子。

youdao

Cover the items in plastic once they reach the right "critical temperature" for storage.

VOA: special.2009.11.30

it's this paper mend with a plastic cover and there's all these black magnetic particles here.

它是用这种纸以及一种塑料覆在上面,这里还有一些黑色磁性粒子。

哈佛公开课 - 计算机科学课程节选

Then cover the top of the pot with a see-through plastic bag.

VOA: special.2011.04.26

She watched helplessly as her husband drifted off clasping the plastic cover of their Jacuzzi.

FORBES: Magazine Article

Nobody mentioned anything about taking the plastic cover off the TV dinner before you put it in the oven.

NPR: Linda Ellerbee, Taking 'Big Bites'

Like most people who do not carry a handbag, I had to buy an ugly, black, plastic cover to stop me dropping it.

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