要对电子邮件的某一部分回复，你不得不手动引用该部分。

To reply to a subsection of an email, you have to quote that section manually.

youdao

当几年前我发现被错误的引用到这页内容里面时，我不得不要求编辑更正过来。

I found this out for myself a few years ago when I was misquoted on the page and had to ask the editors to make a correction.

youdao

这些例子运行于固定大小写/区分大小写 的文件系统上；在很多系统下，您将不得不保持“ls”的大小写去引用它。

These examples were run on a case-retentive/case-insensitive filesystem; under many systems, you will have to quote "ls" to maintain its case. This behaves identically

youdao