as the crow flies可不是“正如乌鸦飞”，而是成直线地；笔直地。

【例句】
The villages are no more than a mile apart as the crow flies.
这些村庄直线距离相隔不超过一英里。

The station is five miles away by road but only three as the crow flies.
去火车站走公路要走5英里，但直线的距离只有3英里。