Various species of trees are planted in this park.

He understands the risk of being infected with semen that contains HIV.

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

Many native species live in this park.

I use koji starter to make homemade miso.

What is the specific epithet of this plant?

He is brushing his lower teeth.

He smiled, showing his lower teeth.

In the Edo period, women blackened their teeth as a symbol of beauty.

If you don't brush your teeth every day, dental plaque can accumulate and potentially cause cavities.