He is going to the hospital for cancer treatment.

I saw a flock of wild geese in the park.

His face is very expressive.

He stubbornly refused to change his opinion.

He had glasses to understand military strategies.

He served the imperial family as a eunuch.

We invested capital in a new business.

He has a baby face and is often mistaken for a high school student.

Metamorphic rock is one of the main rocks that form the Earth's crust.

Sedimentary rocks are widely distributed on the surface of the Earth.