One final note: The new focus model is not completely backwards-compatible with current versions, so existing applications will need to be thoroughly tested.

最后一点：新的焦点模型与当前各个版本不是完全向后兼容的，所以现有的应用程序将需要彻底的测试。

youdao

One advantage of using RDF in this scenario is that it may be extended in such a way as to add additional functionality without breaking backwards compatibility for other RDF processors.

这样使用RDF的好处之一，是它可以在保证向后兼容其他RDF处理的情况下，扩展其他的功能。

youdao

This is one of the key ways that an ext3 filesystem maintains backwards compatibility with ext2 metadata, and in turn, the ext2 filesystem driver.

这是ext3文件系统保持对ext2元数据，以及ext2文件系统驱动程序的向后兼容性的关键方式之一。

youdao

If you get them backwards, logr you will integrate one over r and will get log r.

如果你逆推的话，对1/r积分得到。

麻省理工公开课 - 固态化学导论课程节选

One leader told BBC Wales it was a step backwards to the days when Wales had one health board.

BBC: Hutt scraps all health authorities

It's an interesting technology too because it's the only one that has actually gone backwards, now that Concorde has been shelved.

CNN: 'Tennis is dependent on jet travel'

One man who knew the plans and operational realities backwards and forwards.

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