He has crossed that border.

She is beautiful in her unadorned state.

The introduction of a new system takes time and cost.

We decided to introduce a new system.

I paid my taxes for this year.

Learning about the historical tax system in this area is very interesting.

As someone who stans the same idol, we often go to concerts together.

It's very easy to walk on this flat road.

'素' is one of the basic characters in Japanese.

He should become the leader of our generation.