His running ability is the best in the team.

In biology, the phenomenon of moving towards light is called phototaxis.

His bike was speeding wildly.

He sped off and disappeared from sight immediately.

This self-propelled lawnmower is very convenient.

He likes to take a walk in the park at dusk.

He learned speed reading to increase his reading speed.

Amatsuko is my best friend.

The sphingid is an insect that is active at night.

The celestial equator has the same tilt as the Earth's equator.