Sensitivity to this type of purring may even be innate in humans, drawing from a primal drive to respond to crying babies. 这种呜呜叫声类型的敏感性，甚至可能在人类来说是与生俱来的，从原始的驱动器绘图回应嗷嗷待哺的婴儿。
purring英英释义
动词 purr:
make a soft swishing sound
indicate pleasure by purring; characteristic of cats
