Single spacing is used within paragraphs, double spacing between paragraphs.

单倍行距用于段内，双倍行距用于段与段之间。

《柯林斯英汉双解大词典》

It's $65 for a single, $98 for a double and $120 for an entire suite.

单人间$65，双人间$98，套房$120。

《柯林斯英汉双解大词典》

Each guest has her own single room, or shares, on request, a double room.

每位客人都有自己的单人房间，经要求也可共用双人间。

《柯林斯英汉双解大词典》

So, if we talked about a nitrogen-nitrogen single versus double versus triple bond, the triple bond will be the shortest and it will be the strongest.

因此，如果我们讨论的是氮与氮之间的单键,双键与三键，那么三键应该是其中最短的一个，同时也是最强的一个。

麻省理工公开课 - 化学原理课程节选

However, then and now, a more pragmatic minority viewpoint has held that while luxury goods may see a high-single to low-double digit drop in price for Chinese travelers for a brief moment, the brands most sought after by Chinese shoppers will simply respond to this greater demand by raising prices.

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They include backward and forward, single- and double-leg jumps lasting approximately 30 seconds each.

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Now you can buy a Google Mini search appliance like a cheeseburger--single, double or triple.

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