会员卡用英语称为"membership card"或"membership club card"。它是一种用来识别和记录某个会员的身份信息的卡片，可以用来访问某些会员专属的设施或享受某些会员专享的优惠。

它的来源可以追溯到用于识别会员的手写名片，随着技术的发展，会员卡也演变成现在常见的卡片形式。

例句：

在这家健身房里，你需要拥有会员卡才能进行健身活动。

In this gym, you need to have a membership card to access the fitness facilities.

如果你想要享受会员专享的折扣，你需要提前申请会员卡。

If you want to take advantage of the members-only discounts, you'll need to apply for a membership card in advance.

只有持有会员卡的顾客才能进入这家酒店的VIP休息室。

only customers with a membership card are allowed to access the VIP lounge in this hotel.