common joy共同的高兴commonadj.常见的；共同的；普通的；平常的；平凡的；粗俗的n.公地；平民；普通；公园common quality failing质量通病Common-Rail Injector共轨喷油器common subroutine area公用子程序区common emitter circuit共同发射电路,共射极电路common ion equilibrium同离子平衡common melastoma fruit野牡丹子commonquality problems质量通病common short stay bolt普通短螺栓common epipremnum herb麒麟尾Common Channel Control公共信道控制