n. joint consisting of a line formed by joining two piecesn. a stratum of ore or coal thick enough to be mined with profitv. put together with a seam
n. 缝合线, 衔接口, 接缝, 线缝, 伤疤vt. 缝合, 接合, 焊合, 使留下伤痕vi. 裂开, 发生裂痕