Economists called the number of times a dollar is spent per year the velocity of money.

经济学家把货币的年周转次数叫做货币流通速度。

But, if everyone follows that same logic, then spending declines and so does the velocity of money.

但如果每个人都遵循同样的逻辑，那么支出就会下降，货币流通速度也会下降。