The use of this machine is simple.

He is an expert in biochemistry.

In biochemistry, liposomes are often used to transport drugs into the body.

He was struggling to carry the large luggage.

He found out that there was a foreign object inside his body.

He was arrested for drug abuse.

This computer can be used by anyone.

He studies well.

The bathroom in my house is very spacious.

You did well on the test, didn't you?