noun🔗Share跃度变化率，加加速度。 The fourth derivative of the position vector with respect to time; the time derivative of jerk."The engineers carefully analyzed the car's suspension to minimize the jounce felt by passengers when driving over bumpy roads. "工程师们仔细分析了汽车的悬挂系统，以尽可能减少车辆在崎岖道路上行驶时乘客感受到的跃度变化率，也就是加加速度。physicsmathtechnicalChat with AIVocabulary GamePractice Reading
verb🔗Share颠簸，摇晃. To jolt; to shake, especially by rough riding or by driving over obstructions."The old truck would jounce and rattle every time it hit a bump in the dirt road. "那辆旧卡车每次在土路上碰到坑洼，都会颠簸摇晃，发出咯咯的响声。vehicleactionChat with AIVocabulary GamePractice Reading
