I saw a pierid dancing in the park.

In chemistry class, I learned about free radicals.

I am looking for skincare products for whitening.

He played innocent by pretending he knew nothing.

My grandmother maintains her health by eating yellow soybeans every day.

I saw a black-backed wagtail in the park.

Have you ever seen a silver pheasant in the park?

I saw a snow goose in the park.

He is the hero of our village.

She was wearing a white silk dress.