马达发出似咳嗽和呼噜的声音.The motor coughed and spat.紧靠他背后有一团漆黑东西蠕动着.发出呼噜呼噜的声音.A black mass close behind him stirred with a heavy grunting sound.猫生气时发出呼噜呼噜的声音.The cat spits when angry....