请教关于瑞士半价卡

准备自驾瑞士4天，看到半价卡的资料是这么写的：Swiss Half Fare Card, 1­month half­fare card for CHF 110.– (with this card you pay
only 50% of the normal fare). For a second
person or more, passes are available at
15% reduction.
是不是可以解读为：我们两人，买一张半价卡，第二人可以享受15%的优惠？
谢谢。