This water might be contaminated, so please do not drink it.

The lesser roadrunner is a bird that can run very fast.

In organic chemistry, nonatriacontane is a saturated hydrocarbon consisting of 39 carbon atoms.

This compound is called triacontane and is often used in organic chemistry.

Tetracontane is a saturated hydrocarbon with 40 carbon atoms in a row.

She has a brother complex, always thinking about her brother.

He participated in the Olympics as a platform diving athlete.

I use wheat flour to make bread.

This radio is old, so it needs to replace the capacitor.

My father works at a telecom company.