He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

Calcium is an important mineral that makes up human bones.

I saw a flock of wild geese in the park.

Potassium is an important mineral for the human body.

It is said that venereal disease was widespread during the Edo period.

I'm so busy with work, I could use all the help I can get.

This song vividly expresses the rise and fall in tone.