词汇：over-the-counter

相关场景

Several home remedies or over-the-counter (OTC) products can help speed the healing process, but it’s unlikely any remedy will cure a canker sore overnight.

几种家庭疗法或非处方药（OTC）产品可以帮助加快愈合过程，但任何疗法都不太可能在一夜之间治愈溃疡。

>> 16 Ways to Get Rid of Canker Sores