英文: Rapidity of action or motion.
中文: 急速行动或动作的快速性英文: Rapidity or speed of motion; swiftness.
中文: 迅速,快速运动的快速或速度;迅速英文: Aminal and vegetable pests propagate with extreme rapidity.
中文: 动物和植物病害极迅速传递。英文: We are surprised by the rapidity of her recovery .
中文: 她恢复得那么快,我们都有些惊讶。英文: The number of the sick was increasing with appalling rapidity.
中文: 病员的数量正以惊人的速度增加。