This wine is specially strained.

There is a bit too much vinegar in this salad.

I made a delicious salad dressing using vinegar.

Please add a little vinegar to this salad.

This road is very narrow, it's difficult for cars to pass through.

The mail arrived while I was away.

I like to play sports.

He is learning to drive a tank.

I work at Kyodo News Agency.

He finds it difficult to adapt to changes in society.