The dog is not dirty now, but it was.

那狗现在很脏，但是当时不会。

youdao

The world is not dirty, where is the sadness?

世界不肮脏，何来的悲伤？

youdao

It's an important part of a woman's experience. It is not dirty or evil or shameful.

这是一个女人人生经历的重要组成部分，这不是什么肮脏、邪恶或可耻的事情。

youdao

But the acquisition of radioactive material for a so-called 'dirty bomb,' which is radioactive material that is dispersed with a conventional explosive device, that is not that challenging.

VOA: standard.2009.05.01

Accountability is not a dirty word.

FORBES: It's Not Just Washington... Accountability is Helpful Everywhere!

Racing is probably not as dirty as mainstream media depicts it, nor as clean as many of us would like it.

FORBES: Does Horse Racing Have A Better Drug Policy Than The Olympics?

On the water front, not only is dirty quality still a big problem in much of Asia, but scarce quantity, too.

FORBES: Asia's Latest Reminders of Its Ecological Fix