He is good at elementary arithmetic, and can solve calculation problems quickly.

Everyone, please have a good new year.

Excuse me, may I come in?

Colonialism continued for a long time until many countries achieved independence.

This nutrient agar contains nutrients that help bacteria grow.

My hometown is a prefecture-level city.

It is said that a ghost is living in this old house.

They launched a surface-to-air missile.

Many large corporations are saving taxes by using tax havens.

Colonization is the process by which some countries dominate other countries or regions and impose their own culture and values.