trading card
noun /ˈtreɪdɪŋ kɑːd/
/ˈtreɪdɪŋ kɑːrd/
(especially North American English)- one of a set of cards, often showing sports players or other famous people on them, that children collect and exchange with one another
集换式卡牌（儿童收集并相互交换的运动员或明星等卡牌）