I think for Singapore only, Diesel fuel oil is cheap
No, seals are cheap, engines expensive.......
One difference is that one costs more ;-)
modern tech is to expensive so cracking IS USED BECAUSE IT IS CHEAP AND EASY
it depends on taxes, how much it cost to import to that area, and the economy.
its expensive
Its expensive
Expensive, costly, precious, priceless, or valuable. Those are opposites of cheap.
They are not so cheap as they used to be. Now people have to drill further or mine deeper, and states that have a lot of oil put up the prices because they know the demand is there. Oil is now more than twenty times as expensive than it was in 1970.
expensive
expensive opulent, expensive, pricy, highbrow,
Nylon is not an expensive material.