Because the airport is often congested, aircraft are frequently directed to circle over the capital, increasing the misery.
因为机场往往“机”满为患，飞机频繁地被告知必须在首都上空盘旋打转，这徒增噪音之大给人们带来的痛苦。
2
Recommended measures could be directed towards persons, baggage, cargo, containers, ships, aircraft, road vehicles, goods or postal parcels.
建议的措施可针对人员、行李、货物、集装箱、船舶、航空器、公路车辆、物品或邮包。
3
In 2006, Congress directed the Department of Homeland Security to explore new missile-countermeasure technologies that do not rely solely on infrared technology onboard aircraft.