If you are planning on using models in a previous release of the product, choosing model instead of Package will help prevent a backwards compatibility issue.

如果您打算在这个产品的早期版本中使用模型，那么选择Model替代Package将会阻止一个逆向兼容性问题。

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In the movie they take a journey backwards through time.

影片中的人作逆时光旅行。

《牛津词典》

I felt that going to live with my parents would be a step backwards.

我觉得回去和我父母一同生活会更糟。

《牛津词典》

Analysts say this is a step backwards for democracy in Niger which could set a bad example for leaders in the rest of the West African region.

VOA: standard.2009.11.14

But,the history of Royalism is not--it goes beyond that, and there was a strong Royalist movement, as I've already suggested, and it wasn't just people looking backwards.

但是君主主义者们克服了这点,发起了一场强有力的保皇主义运动,就如我之前表示的,这不仅仅是人们在追溯过去

耶鲁公开课 - 1871年后的法国课程节选

Reverse transcriptase is a naturally occurring protein, it has a biological function in HIV, but we can use it for a technical logical function here by going backwards on the biological path from messenger RNA to DNA.

反转录酶是在自然环境中存在的蛋白质,它在HIV中发挥着生物功能,但在这里它可以发挥一个技术功能,让它用信使RNA反转录出DNA

耶鲁公开课 - 生物医学工程探索课程节选

Sinn Fein have criticised the decision, with councillor Johnny McGibbon describing it as a backwards step.

BBC: Craigavon Council to review Union flag policy

However, the Scottish Liberal Democrats described the new service as "a backwards step".

BBC: NHS 24 to start cyber health checks for over 40s

The photos, five in all, show a muscular Ryan lifting weights in a grey t-shirt, shorts and a backwards red hat.

FORBES: Paul Ryan Workout Photos Spur Memes, Fake OkCupid Profile