Her smile is very natural, and it feels comfortable.

In philosophy, natural law refers to the moral laws of the universe.

Calculating the natural logarithm is an important part of mathematics.

Natural language processing is the technology that allows computers to understand and generate human language.

I was moved by the beauty of nature.

The chief director decided on the agenda for the meeting.

How long is the perimeter of this rectangle?

He was wearing a new robe.

The Tenchō era was a very important period in Japanese history.

The abbot supervises the operation of the monastery.