[] the difference in rates of pay between one group of people and another工资差距◆the male-female wage gap男女工资差距◆The wage gap between CEOs and workers is much wider than it was ten years ago.首席执行官和工人的工资差距要比十年前大很多。➡wage differential ⨁the wage gap narrows / widens工资差距缩小/扩大