in force 1. (法律等)有效；在实施中 The law remains in force. 这项法律继续有效。 the system in force 现行制度 The curfew was put in force on Sunday. 星期天开始实施宵禁。 2. 人数众多地，大批地 attack the enemy in (great) force 向敌人大举进攻 The enemy is in (great) force behind the mountains. 敌人在山后集结了大量兵力。 People went in (great) force to see the parade. 人们蜂拥着去看游行。 3. (尤指谈话、 讲演时)精神抖擞 He is always in (great) force and full of gossip. 他总是精神抖擞，满肚子的街谈巷议。