这个手镯是纯金的吗？
Is this bracelet genuine gold?

她是一个纯洁的女孩。
She is a pure girl.

这件衣服是纯羊毛的，还是羊毛与尼龙混纺的？
Is this garment made of pure wool, or of wool mixed with nylon?

他并不知道实情，他说的纯属猜测。
He didn't know the fact; what he said was pure conjecture.

我把你的文件丢了，纯粹是碰上倒霉事了。
I lost your file by pure mischance.

这是一个纯学术性的问题。
The question is purely academic.

与其说她善良不如说她单纯。
She is not so kind as simple.

水可以通过蒸馏而提纯。
Water can be made pure by distilling it.