what is the meaning of "over the counter"?

问题描述:

what is the meaning of "over the counter"?

over-the-counter

(证券等)不通过交易所直接售给顾客的

非处方药 OTC

两种意思
1、自己去药店柜台买的药,即“非处方药品”(over-the-counter medication)
2、经济术语“场外交易”,买卖双方直接交易

On the Development of Our Over-the-Counter Market
关于我国场外交易市场的发展.
"场外"