Obesity has become a global health problem.

He went from being a poor person to a rich man.

Himi is my best friend.

She told me his secret.

This building is shaped like the character '品'.

There is a large sluice gate in this river.

He went to Tokyo for work.

He is famous in town as a sex mania.

Freedom of expression is one of the fundamental rights of democracy.

In genetics, we study how genes determine the phenotype.