ante

1. N-SING In card games such as poker, the ante is the sum of money staked by the players before the cards are dealt. (扑克等牌类游戏中的) 底注

2. PHRASE If you up the ante or raise the ante, you increase your demands when you are in dispute or fighting for something. (在争斗中) 加高要求[journalism]

Whenever they reached their goal, they upped the ante, setting increasingly complex challenges for themselves. 每当他们达到了目标，他们就加高要求，为他们自己设置越来越复杂的挑战。