as the crow flies
US /æz ðə kroʊ flaɪz/
UK /æz ðə kroʊ flaɪz/

1.
直线距离, 最短路线
in a straight line; by the shortest route
:
•
It's about ten miles from here to the city center as the crow flies, but much longer by road.
从这里到市中心直线距离大约十英里,但走公路要远得多。
•
The two villages are only a mile apart as the crow flies.
这两个村庄直线距离只有一英里。