不幸的是，那些劣质或不纯的蜂蜜表面上和纯正的区别不大，当你在货架上看到时，你很难辨别出究竟哪一个是纯正的，哪一个不是。

The problem with this is, unfortunately, fake and impure honey can be passed off as pure very easily. When viewed on the shelf, it is very hard to pick out what is pure, and what is not.

youdao

我们在地球上发现的铁矿是不纯的。

The iron ore which we find in the earth is not pure.

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纯净的盐不会失去味道，但不纯的盐则会。

Pure salt will not lose its flavour, but impure salt will.

youdao

Purity, which is the absence of impurity, is a prerequisite for access to the holy or for holy status.

纯洁，不纯的反义词，是接近神圣或达到神圣状态的先决条件。

耶鲁公开课 - 旧约导论课程节选

And scholarship of the nineteenth century and most of the twentieth century is generally characterized by a deep-seated bias that views impurity rules as primitive and irrational taboos, and sacrifice as controlled savagery that's empty of any spiritual meaning.

十九世纪和二十世纪的大部分时期,学术界都有一个,很深层的偏见，那就是认为不纯的规则是,原始且无理的，献祭是野蛮人才干得出来的,无任何精神意义的活动。

耶鲁公开课 - 旧约导论课程节选