English translation for "四级片"

category four， or hard-core

Similar Words：

"四级螺旋线" English translation, "四级逻辑" English translation, "四级脉" English translation, "四级逆转风扇透平" English translation, "四级膨胀机" English translation, "四级区" English translation, "四级色序" English translation, "四级杀人狂" English translation, "四级十进电容器" English translation, "四级涡轮" English translation