Wind is a current of air caused by a vacuum caused by hot air rising.

风是由热空气上升产生真空而引起的空气流动。

《柯林斯英汉双解大词典》

The main reason people pay extra for a Dyson is because it is a vacuum cleaner with a trendy brand.

人们愿意花更多的钱买戴森是因为它是一个时尚品牌的真空吸尘器。

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Moral values cannot be taught in a vacuum.

道德价值观不能在与世隔绝的状态中进行传授。

《柯林斯英汉双解大词典》

The Henry Milker is a hand-operated vacuum pump.

VOA: special.2010.07.20

This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.

海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。

麻省理工公开课 - 固态化学导论课程节选

I'm going to create a vacuum.

我创造了真空。

麻省理工公开课 - 热力学与动力学课程节选

Cezanne's death created a vacuum and challenge: Who would or could pick up the great man's gauntlet?

BBC: Too famous to see?

But it also points out that neither RBS nor the FSA were operating in a vacuum.

BBC: Abdication at the Royal Bank

They found that one in 10 births involved the use of a vacuum or forceps.

BBC: Daytime births 'more difficult'