He is using steroids to increase his muscle mass.

He booked a hotel for a one-week stay.

I decided to stay at his house overnight.

There is a canistel tree in my garden.

He advertised the product using stealth marketing techniques.

Esters are very important compounds in organic chemistry.

She goes to the beauty salon every month.

The doctor told him that his testosterone levels were high.

Let's protect ourselves from spam emails by using a throwaway email address.

He was excited to find an old discarded card.