Tax expenditures are the revenues forgone due to preferential tax treatment.税收支出是由于税收优惠待遇而放弃的收入.The alternative forgone is called the opportunity cost.这种选择性的放弃就叫做机会成本.Cost is the highest - valued option forgone.成本是在放弃的选择...

forgone的音标：forgone的英式发音音标为：[fɔ:'gɒn]forgone的美式发音音标为：[fɔr'gɔn-'gɑn]...

v.没有也行，放弃( forgo的过去分词 )...