Of a cat, make a soft, continuous, vibrating sound

• Usually expressing comfort, contentment, or affection

指猫：发出柔和、持续的呼噜震动声

• 通常表示舒适、满足或亲昵

Speak in a low, throaty, seductive or affectionate manner

• Sounding pleased or indulgent

以低沉、喉音、带诱惑或亲昵的方式说话

• 语气显得满足或讨好

Of a machine or engine, run with a low, smooth rumble

指机器或发动机：以低沉、平稳的嗡鸣声运转

The soft, vibrating sound a cat makes

• Also, a similar murmurous sound of pleasure

猫发出的柔和、带振动的呼噜声

• 也指类似的愉悦低吟声

Onomatopoeia imitating the sound of a cat’s purr

拟声词，模仿猫的呼噜声