The Diff class supports two types of comparisons: identical and similar.

Diff类支持两种比较：identical和similar。

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This file is typically created with the diff utility, and is called a diff.

这个文件通常是使用diff工具创建的，因此就称为diff文件。

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The -diff option is used to specify exactly how to obtain the diff output for each file.

选项用于精确的指定，怎样为每一个文件获得diff输出。

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The report concluded the C.diff infection was the main cause of death for 90 patients in 2007.

BBC: No challenge from Maidstone NHS over Rose Gibb payout

In 2007 the commission found dirty wards had contributed to the C.diff outbreaks which led to the deaths of 90 people.

BBC: Superbug death trust rated 'weak'

Ms Gibb left Maidstone and Tunbridge Wells NHS Trust in October 2007, days before the report into the C-diff outbreak was published.

BBC: Bug scandal boss loses pay fight