He spilled a drop of coffee on the table.

His knee problem is due to a lack of synovial fluid.

It seems that my car has an oil leakage.

It seems that my car is leaking oil.

I made ice cream using liquid nitrogen.

In this recipe, we are using liquid sugar.

In this recipe, we are using liquid egg.

He was hospitalized due to meningitis.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

Well then, I'm off.