The late boy made a beeline for his classroom. 迟到的男孩抄捷径跑去上课。
The crank and connecting rod mechanism (CCRM) is often used in automatization machineries.It can transform circumrotation movement into to-and-fro beeline movement. 摘要曲柄连杆机构是自动化中最常用的机构之一,它可使旋转运动与往复直线运动相互转化。