Usually you use money/points/coupons/vouches/tickets to 兑换 It can be used in the virtual world(online games, etc) as well. Examples: 在这个游戏中，你可以用60个金币[兑换]一把剑。（In this game, you can get a sword for 60 coins. 超市在举办促销活动，每次购物可以得到一张券, 用劵可以[兑换]一瓶果汁。(The supermarket is doing a promotion. Every time you shop there you get a coupon/ticket, which can get you a bottle of juice for free. 我发明了一款桌游! 现在我们一起来玩吧! 在这个游戏里你集齐三张红色卡片可以[兑换]特殊武器。 I invented a board game! Let's play it now! When you have collected three red cards in this game, you can exchange them for a special weapon