1. 手伸得过远：89.手入水过深:digging | 90.手伸得过远:overreaching | 91.抱[抓]水:catch; grip; purchase
2. 走过头, 过火：confidant: 心腹朋友, 知己 | overreaching: 走过头, 过火 | moderate: 温和主义者
adj
1. revealing excessive self-confidence
reaching for the heights
e.g. vaulting ambition
Synonym: vaulting