checkmate意思是：输棋。
checkmate
英 [ˌtʃekˈmeɪt] 美 [ˌtʃekˈmeɪt]
n.将死;输棋;败局;败北;彻底战败。
vt.把…将死;使彻底失败。
The object in a chess game is to checkmate the opponent's king, a piece whose mobility is limited.
下国际象棋的主要目的就是将对方机动性受到限制的"王"将死。
She hoped the plan would checkmate her opponents.
她希望这一计划能彻底战胜对手。
His king had been checkmated.
他的王棋已被将死。