There are no bad materials as such , but only bad articles.

没有不好的素材，只有不好的文章。

youdao

Finally, they say that future ethanol supplies will be derived from materials like switchgrass or wood chips that are resistant to bad weather.

最后他们说，未来的乙醇供应将源自于那些不受坏天气影响的原材料，比如柳穗或者木屑。

youdao

In general, minor changes in the translation materials are usually isolated risks, unlike functional modifications where one bad line of code can disrupt the stability of the entire system.

一般而言，翻译资料中的微小更改通常是孤立的风险，不同于功能上的修改，其中一行出错的代码可以破坏整个系统的稳定性。

youdao

There was also real growth in furniture and construction materials, not bad for a country with a cooling housing market.

FORBES: Chinese Economy Looking Better

Mr Winwood, a retired engineer, says it is also worrying not knowing whether it could be the actual movement of the bridge that had caused the problem, or if it was down to bad workmanship or using the wrong materials.

BBC: Poole's Twin Sails bridge problems 'not acceptable'

There are still too many bad actors in search of these dangerous materials, and these dangerous materials are still vulnerable in too many places.

WHITEHOUSE: President Obama Speaks at the Nuclear Security Summit