The tau particle is a part of particle physics.

I missed school because of the flu.

The shrapnel exploded on the battlefield, and the soldiers could not avoid it.

This wine has sulfurous acid added to it.

His way of thinking is always fluid, able to flexibly respond to new information.

The water of this river is flowing quietly.

In phonetics, a liquid consonant is pronounced like a vowel.

I have been to Keelung City in Taiwan.

Draco is one of the constellations in the northern hemisphere.

Exercise helps to improve blood flow.