The children are enjoying playing in the mud at the park.

He rose in the world through hard work and talent.

He was arrested on suspicion of kidnapping a child.

The Mariana Trench is the deepest part of the earth.

Once upon a time, a frog was hopping around in a pond.

This jacket fits me perfectly.

Alkaline earth metals are one of the main components of the earth's crust.

Rui is accumulating study every day.

This circle looks perfect.

I'm thinking of having Mapo tofu for dinner today.