directnesn.直接；径直directadj.直接的；笔直的；坦白的v.对准；指挥；指示；命令direct drilling倾斜挖掘direct thinking指向性思维direct-action[电] 直接传动direct a school管理学校direct stratify直接分层directed branch有向分枝direct adaptive直接自适应direct security直接担保品direct judgment直接判断direct fast dye直接耐晒染料

1. The curved edge at the junction of two intersecting vaults.
   穹棱肋在两交叉的穹顶相接处的呈曲线状的边缘。
2. He fell, striking his head on the edge of the table.
   他摔倒了，头碰在桌棱上。