介绍： 原文：Simultaneously, technological ad and a global economy has reduced the demand for well-paying blue-collar jobs here in the United States. The cumulative effect of these two factors is that many Americans are forced to take two or more part-time jobs, just to make ends meet.

cumulative: having a result t...

介绍： 原文：Simultaneously, technological ad and a global economy has reduced the demand for well-paying blue-collar jobs here in the United States. The cumulative effect of these two factors is that many Americans are forced to take two or more part-time jobs, just to make ends meet.

cumulative: having a result that increases in strength or importance each time more of sth is added

Eg: the cumulative effect of human activity on the world environment