college-graduation rate的意思|示意

Although the returns to a college education have risen sharply in recent decades, America's college-graduation rate has been inching up slowly, and now hovers at around 40%.

虽然近几十年来大学教育的回报率大幅增高，美国的本科毕业率仍上升缓慢，目前浮动在40%左右。

In fact, we have a college graduation rate that's slightly below the average across all advanced economies.

事实上，我们大学毕业率比全球发达国家的平均水平还要稍低一些。

And ultimately, of course, the college graduation rate is likely to hit a substantially lower ceiling than that for high school or elementary school.

当然，最终大学毕业率很可能会触及一个比高中或初中毕业率低得多的最高值。

In fact, America has a college graduation rate that's slightly below the average across all advanced economies.

事实上，美国的大学生毕业率已经略低于发达国家的平均水平。