adj.成一直线的；直列的
adv.成一直线地；直列地
Stakes were placed in a line down the centre between the verticals. 木桩被成一直线的放置在竖材之间的中央地带。
He held her to him in a warm embrace. 他热列地拥抱她。
主线；主静脉
n.main line 干线列车
