During a depression money circulates slowly.是什么意思？

During a depression money circulates slowly.

在商业萧条时期,货币流通滞缓.

during

prep. 在…的时候，在…期间，当…之时，其间；

例句
...the accrual of funds used during construction.
建设过程中资金的累积

depression

n. 萎靡不振，沮丧，下陷处，坑，衰弱，减缓；

例句
It seems as if the blanket of depression is in some way necessary to help them blot out the even greater pain of real life...
似乎这种弥漫的抑郁情绪多少能帮助他们忘却一些现实生活中更大的痛苦。

money

n. 钱，财富，薪水，款项；

例句
He has spent money with gay abandon...
他肆意挥霍钱财。

circulates

v. （使）循环( circulate的第三人称单数 )，（使）流通，（使）流传，散布；

例句
...a virus which circulates via the bloodstream and causes ill health in a variety of organs...
通过血液循环传播、造成多种器官病变的病毒

slowly

adv. 缓慢地，慢吞吞地，慢腾腾地，慢条斯理地，不慌不忙地，袅袅，迟钝，痴痴呆呆地，逐步；

例句
The hallowed portals of academe were slowly and grudgingly opening to women.
大学神圣的大门缓慢又勉强地向女性敞开。