Shipping was delayed because an obstruction on the loading dock blocked the trucks.

由於裝卸平台上有障礙物擋住卡車，出貨因此延誤。

Please report any obstruction in the emergency exits to the facilities manager immediately.

緊急出口若有任何阻塞，請立即通報設施經理。

The airline canceled the flight after an obstruction was found on the runway.

跑道上發現障礙物後，航空公司取消了該航班。