This old radio uses a cold-cathode tube.

Hydrogen peroxide is often used for disinfecting wounds.

He died from overwork.

You can clearly see the eyestripe on this bird.

Peroxides play an important role in chemical reactions.

She is very smart, but as the proverb goes, 'A clever woman can't sell a cow,' she can't do everything well.

Alternating hot-cold baths have the effect of improving blood circulation in the body.

Texas is a part of America.