He tried betel nut for the first time in Taiwan.

He is working hard.

Every day, he labors hard.

Furo is my best friend, always cheerful and energetic.

The wind and waves were so strong that the ship rocked.

He is deaf and communicates using sign language.

I found a large mantis in the park.

He is known as an expert in gerontology.

We made a vow to grow old together.

The old dog at my house is very smart.