A double room with a balcony overlooking the sea had been reserved for him.

一个带一座阳台的海景双人间已被预留给他了。

《柯林斯英汉双解大词典》

If you want to change for a double room, you'll have to pay another $25.

如果你想换一间双人房，你得再付25美元。

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The three rooms upstairs are too small to have enough room for a double bed.

楼上的三个房间太小了，没有足够空间放双人床。

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Houston-based Lauren Rottet, founder of Rottet Studio, encourages her clients to forgo a formal dining room for a home office with a desk that can double as an occasional grand table, for that rare event that calls for one.

WSJ: Furniture Does Double Duty