He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

Wave function is a fundamental concept in quantum mechanics.

He is conducting research on historical kana usage.

Revisionism aims to change our understanding of past events.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

I'm sorry, but I don't speak Japanese.

I'm a Muslim, so I fast during Ramadan.

I'm Jewish.

She used to be a prostitute, but now she has started a new life.