In food science, greening is one of the phenomena that degrade the quality of food.

This apple has completely turned green.

She suddenly changed her personality, surprising everyone.

He hit a jackpot at the pachinko.

He made a strange face and made everyone laugh.

He is good at using irregular verbs.

He is an expert in ethology, and his research is highly regarded worldwide.

He likes to take a walk in the park at dusk.

His new song is composed in E flat major.

Variational method is a branch of mathematics used to find the minimum and maximum values of functions.