词汇	Normal voice
释义	Normal voice 正常音
随便看	life time of the level lifetime of the network life-time job lifetime jobs lifetime killer life time killer lifetime killer doping lifetime killing impurity Lifetime Learning Credit lifetime lilling impurity lifetime limitation lifetime load factor lifetime lubricated lifetime lubrication lifetime management Lifetime matrix lifetime maximization lifetime meal ticket lifetime measurement lifetime membership lifetime model lifetime of a locality lifetime of a location lifetime of an activity set lifetime of an excited state