What kind of liquid is in this bottle?

My new pen tablet is very easy to use.

This stay-on-tab can is convenient because the lid does not come off even after opening.

He doesn't need to unnecessarily take on a fight.

He decided to buy a new car on credit.

That remark earned him frowns from those around him.

He bought too much on credit, and his debt increased.

He bought a new car on credit.

It is important to stock up on food before an earthquake.

Because an earthquake forecast was issued, I stocked up on food.