v.夸張；做得過分；過分高估；將（球）打到果嶺之外；過分依賴……的力量；表演過火

The marathon runner raced ahead in the early stages of the race but he had overplayed his hand and had to drop out exhausted with only three miles to go. 這位馬拉松賽跑者在比賽的開始階段跑在前面，但他過高地估計了自己的力量，結(jié)果在離終點僅3英里時，跑得筋疲力盡力而不得不退出比賽。

The union is in danger of overplaying its hand in the current dispute. 工會在目前糾紛中高估自己實力有失敗之虞。