gambit
/ˈgæmbɪt; `ɡæmbɪt/ n
1 opening move(s) in chess in which a player sacrifices a piece in order to win an advantage later （国际象棋的）开局让棋法.
2 (fig 比喻) opening move in any situation that is calculated to win an advantage 为获得优势采取的第一步行动
His opening gambit at the debate was a direct attack on Government policy. 他在辩论中的策略是先直接抨击政府的政策.