The problem of introduced species can potentially disrupt the balance of ecosystems.

Many native species live in this park.

His variety of pitches is very diverse, which troubles the batters.

This seedless grape is very sweet.

Tanemaru is my best friend.

He used the ember to start a new fire.

He is a pain in my neck.

The government declared a state of emergency to prevent the spread of the new coronavirus.

My grandmother drinks Panax ginseng tea every day.

Pentathlon is a competition that tests both physical strength and technique.