It needs these details to calculate line lengths, hyphenation, justification, and so on.

它需要这些细节来计算行的长度、连字符、对齐格式，等等。

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They can go for the lower end of column width because they have a lot of control over the text (hyphenation and justification).

他们可以控制列宽度，因为他们有很多文本控制办法(断字和对齐)。

youdao

They are also poor at hyphenation and justification: breaking words at lexically appropriate locations, and varying the spacing between letters and between words.

在连字符和排版上仍然欠缺：打破常规人们阅读定位的文字，改变字母之间的间距。

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