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

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

LEWIN Now, Peter decides at one point that instead of throwing the sandwich backwards, he can also throw the sandwich forward, because, look, we have here the red ellipse.

12点方向，三明治移动。，LEWIN：，12：00，，there，goes，the，sandwich。,现在Peter决定在一个点,而不是把三明治向后扔，他也可以向前仍，因为，看，公色的椭圆轨道。

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'

Yet in one respect, the government has been going backwards, not forwards.

ECONOMIST: Will Japan never learn?