It has also been designed to use extents, but if this is used, then compatibility with ext3fs is lost.

它还可以使用分区，但是这样做将失去与ext3fs的兼容性。

youdao

If specific 2.0 features are desirable, then you can try to patch 2.0 version islands in your 1.0 stylesheet, and run it using a 2.0 processor that supports backwards compatibility.

如果需要特定的2.0特性，可以尝试在1.0样式表中补上2.0版的孤岛，使用支持向后兼容的2.0处理程序运行它。

youdao

If you do not have access to a 2.0 processor that supports backwards compatibility, then you must choose option 1, 5, or a subset of option 4, where every bug fix must be a 2.0 solution.

如果没有支持向后兼容的2.0处理程序，就必须采用选项1、5或者选项4的一个子集，所有的bug修正必须采用2.0方式。

youdao

But then you want to have backward compatibility so you can play your used games forever.

FORBES: How PS4 Might Just Solve the Used Games Problem and Make Gamers Happy, Too

We were then shown the AirStash's WebDAV compatibility using iOS' Keynote.

ENGADGET: AirStash wireless flash drive with media streaming and WebDAV update hands-on (video)

During the entire hour-plus-long keynote, the word "Vista" was only uttered once, and then only in the context of Windows Live compatibility, and in the same quick breath as Windows XP and Windows 7.

FORBES: Magazine Article