cardholders是cardholder的复数
cardholder
美 ['kɑrd.hoʊldər] 
英 ['kɑː(r)d.həʊldə(r)] 
- n.持有信用卡的人;持卡人
 - 网络卡夹;刷卡族
 
复数:cardholders  
n.  | 1. an owner of a card that carries information, especially a credit, debit, bank, or phone card 2. someone who owns a credit card or debit card for buying things with  |