The cat purred as I stroked its fur.我抚摸猫的软毛时,它呜呜地叫着。
We could hear the sound of a lawnmower purring in the back garden.我们能听到后院割草机的震颤声。
A black limousine purred up (= drove up making a quiet, continuous, soft sound) outside the hotel.旅馆外面,一辆黑色豪华轿车呜地驶过来。
[ + speech ] "I love it when you stroke my back," she purred (= said with pleasure).“我喜欢你抚摸我的背,”她满意地哼着说。