as the crow flies
直線距離，不計(jì)較道路或障礙物的飛行距離
口語·地理·表示直線距離
英文釋義
the shortest or most direct route between two points
例句
It's only five miles as the crow flies, but the winding road makes it ten.
典故來源
烏鴉飛行時通常走直線，不繞路，因此用來比喻兩點(diǎn)之間的直線距離。