He stumbled on a stone and hit his heel hard.

He poured sake for me.

He has a sore neck.

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.

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