成双成对的舞伴在跳贴面舞。

Couples were dancing cheek to cheek.

《牛津词典》

但是在周末我们可能成双成对的出去。

But at weekends we would pair off.

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参加晚会的人全都成双成对，没有单身的。

The party was full of couples, with no single people.

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由于我国民居的大门，通常都是两扇对开，所以门神总是成双成对。

As the door of our homes, usually two off, so keeper are always in pairs.

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动物园的池塘里，鸳鸯正在成双成对地戏水。

In the zoo pond, the mandarin ducks are swimming in pairs.

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动物园的池塘里，鸳鸯正在成双成对地戏水。

In the zoo pond, the mandarin ducks are swimming in pairs.

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