v.(猫等满足地)呜呜叫；(机器等)发出低沉震颤声；(人)发出愉快的声音
n.(猫等满足时)呜呜的叫声；(机器等)低沉的颤动声；人高兴发出的声音
The cat was purring contentedly on my lap. 这只猫趴在我的膝盖上，满足地呜呜叫着。
The big car purred along the road. 那辆大汽车一路呜呜地开了过去。
She purred her approval of the suggestion. 她高兴地表示赞同这个建议。
用作名词 (n.)I stroked the cat and it gave a low purr. 我抚摸着这只猫，它满足地低声呜呜叫着。
I heard the gentle purr of an engine outside the house. 我听到房子外面有引擎微微的颤动声。
