I can't rest easy until he comes back.

I can't rest easy when he doesn't come home.

I'm very anxious until he comes back.

Kotaro is my best friend.

I want to spend time with you anytime.

A salt pan is an important facility for making salt from seawater.

The electromagnetic waves in this room are too strong, causing the electronic devices to malfunction.

A positron is a particle that carries a charge opposite to that of an electron.

Yesterday, I got a prank call from an unknown number.

I commute to work every day by Itaden.