commonholdn.终生共有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 System Segment通用系统部分common bletilla tuber白及common quality faults质量通病common crabgrass herb马唐common vitelline duct[医] 总卵黄管Common soother nipple普通安抚奶嘴common channel theroy共同通道学说common knotgrass herb小叶萹蓄common-user channel共用信道Common gate interface通用网关接口