一定要保持这些白衣服和饰物干净哦，因为看着厌恶又肮脏的白色同样让你的心情变得亦是如此。

Be sure to keep your white clothing and decor clean because white that looks dull or dingy will only affect your emotions in the same way.

youdao

所有的这一切都表明，处于世界性城市化进程中的肮脏城市能够干净起来。 他们也都会让自己干净起来，就像富裕国家的肮脏城市做过的那样。

All this suggests that the filthy cities of the urbanising world can, and will, clean themselves up, just as the squalid cities of the rich world have done.

youdao

看来解决墨西哥湾的灾难还有很长的路要走，但从长远看来，那些肮脏的水有有人确实需要清理干净。

That may seem a long way from the calamity in the Gulf; but in the long run those other murky waters also need to be cleaned up.

youdao