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He wore out two pairs of shoes last year.

去年他穿坏了两双鞋。

《牛津词典》

He bought two pairs of shoes.

他买了两双鞋。

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And still there would be enough left for new stockings two pairs per child.

VOA: special.2009.09.05

PROFESSOR: Good, good, it's going to be less than, and it's going to be less than because now we have two lone pairs.

教授：很好，它要更小,因为我们现在有两个孤对。

麻省理工公开课 - 化学原理课程节选

So since we have two lone pairs, we're going to be pushing down even further on the bonding electrons, so we're going to smoosh those bonds even closer together.

因为我们有了两个孤对，我们会把成键电子,更加向下压，所以我们把这些键更加紧得推到一起。

麻省理工公开课 - 化学原理课程节选

Each new Ford Focus will have roughly two pairs of average-sized American jeans in it.

FORBES: Ford Focus Uses Recycled Jeans

He bought two pairs and had it confirmed by Sony that they were indeed fake.

CNN: A Profitable Crusade

Buying two pairs of trainers increases the risk, as this may indicate plans to resell them.

ECONOMIST: Computing