The potential energy of this ball is proportional to its height.

The place of articulation is a very important concept in phonetics.

His usual location is the seat at the very back of the library.

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

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

Using the private railway makes commuting very convenient.

We respect Japanese culture.

We are going on a trip tomorrow.

He holds a personal grudge against me.

My personal thought is that everyone should be treated equally.