You can never be happy by deceiving others, even if you gain money.

I plan to go to the library tomorrow.

A large amount of slurry is being used at this construction site.

An arc discharge occurs when electricity passes through the air.

He is majoring in genetics at university.

This shirt has three-quarter sleeves, making it perfect for spring and autumn.

I found a spider starfish on the seabed.

He took that risk deliberately.

I missed the last train.

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