base·lineBrE/ˈbeɪslaɪn/NAmE/ˈbeɪslaɪn/noun[usually sing.](sport体育) alinemarkingeachendofthecourt in tennis or the edge of the area where a player can run in baseball(网球场的)底线;(棒球场的)垒线(specialist) alineormeasurementthatisusedasastartingpointwhencomparingfacts(用于比较的)基准,基线◆Thefiguresfor2014wereusedasabaselineforthestudy. 这项研究以 2014 年的数据为基准。