beeline

例句：

1. 1.The pilot carefully plotted the beeline to the next city.
   飞行员仔细规划了前往下一个城市的航线。
2. 2. The beeline through the forest was much shorter than the alternative route.
   穿过森林的直线路径比备选路线短得多。
3. 3. The beeline to the summit is steep and treacherous.
   通往山顶的直线路径陡峭且危险。