private sector: the part of a country's economy which is not controlled or supported financially by the government is the private sector. efficacy testing : an efficacy test is a test to make sure something works and does what it is supposed to do. vital: something that is very important, necessary or essential is vital. ...have to be done: in this sentence this expression means 'must be invested'. at the end of the day: an informal expression which means 'in the end' 'after everything else has been done.' an awful lot: an expression which means 'a large amount.' monopolized (also spelt monopolised): something which is completely controlled by one person, company or organisation is said to be monopolized. |