A:Do you think that we will really run out of oil in twenty years?
B:Not quite.But obviously oil companies are not finding new oil quickly enough.
A:Yeah.What did you say?Four new barrels found for every ten barrels sold?
B:That's right.That could cuase prices to increase from 30 dollars to 100 dollars per barrel!
尤其是这句four new barrels found for every ten barrels sold不知道怎么翻译好,