I meditated under the bodhi tree.

Riboflavin is a type of vitamin B2, which is a nutrient necessary for health.

He is good at playing the oboe.

He got an absolute beating in the match.

He was beaten to a pulp in the match.

Please make the payment after checking the invoice.

Erebus is the god of darkness and chaos in Greek mythology.

VOCALOID is a singing voice synthesizer engine, and many artists use it for music production.

He is writing a thesis on the octovocalic theory.

I learned about the Klein bottle in math class.