n. <口>傻瓜( sap的名词复数 ); 笨蛋; 树液; 元气
v. 逐渐削弱（某人[某事物]的力量、活力等）( sap的第三人称单数 ); 逐渐消耗（某人的力量、活力等）
英文释义
n a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
n a person who lacks good judgment
n a piece of metal covered by leather with a flexible handle; used for hitting people
v deplete
v excavate the earth beneath