基本解释双线,双轨同根派生 double-line相关词英汉例句For strong sewing use double, not single thread.为了缝得牢,用双线,而不要用单线。You can right-click again to switch back to double line ducts.您可以再次右键单击管道形状以切换回双线管道。double-line更多例句