He stumbled on a stone and hit his heel hard.

He poured sake for me.

He has a sore neck.

An up quark is one of the fundamental particles in particle physics.

I have piano lessons on Thursday.

Historically, Kyoto was also called 'Beijing', which means 'Northern Capital'.

I like eating pork.

By using punctuation marks correctly, sentences become clearer and easier to understand.

Transition metals play an important role in chemical reactions.

This metal is very hard.