The most notable change from XPath 1.0 to XPath 2.0 is the introduction of a much richer type system: Every value is now a sequence, with a single value being treated as a sequence of length 1.

XPath 1.0到XPath 2.0最引人注意的一个改变是引入了更加丰富的类型系统：每个值现在都是一个序列，一个单一的值将被视为长度为1的序列。

youdao

That is why buffer++ works -- it is incrementing by a single vector length, which is 16 bytes.

这就是 buffer++ 能够工作的原因 —— 它是按照单个向量长度增长的，也就是 16 个字节。

youdao

One hundred fifty-seven pages in length, the book is so winsome that it is easy to read in a single sitting.

一百五十七页的长度，这本书极惹人喜爱，很容易坐下来一口气读完。

youdao

With three glass lens elements in three groups, it can be used as a wide-angle lens equivalent with a single focal length of 30mm (35mm camera equivalent).

ENGADGET: Olympus E-PL5 and E-PM2: Micro Four Thirds cameras with OM-D-like focusing, performance boosts (hands-on)

Its greatest exponent is Yasuki Hiramatsu, born into a family of metalsmiths, who, through an annealing process, can twist a single length of gold or silver into a ring or necklace enchantingly resembling a minimalist bird's-nest.

ECONOMIST: Contemporary jewellery