Genzaburo is my best friend.

Gentaro is my best friend.

Genki is my best friend.

How does this pathogen infect humans?

We need to find a new source of supply.

Gonogorōemon is a historical name in Japan.

It is important to identify the source of infection.

The use of renewable energy helps protect the global environment.

He likes to take a walk in the park at dusk.

He is spending a lot of time on experimental research.