Some people skate ski; they speed across level snow.

VOA: special.2009.02.16

the speed of the money circulation of economy fell to the lowest level in fifty years.

现金流转的速度,降到了50年来的最低点。

斯坦福公开课 - 经济学课程节选

the speed of the money circulation of economy fell to the lowest level in fifty years.

现金流转的速度,降到了50年来的最低点。

斯坦福公开课 - 经济学课程节选