His growth is very fast.

Please calculate the arithmetic mean of this dataset.

The children were playing by beating the pellet drum.

Nuclear tests pose a great threat to world peace.

My teaching practice will start from next week.

This product is a parallel import.

My child is currently learning educational kanji.

It's difficult to get a strike in bowling.

I learned how to calculate the harmonic mean in math class.

I bought a drink from the vending machine.