Helicopters have been upgraded and modernized...直升机已经更新换代，装配了现代化设备。The supplies need to be offloaded and put on helicopters.这些补给要卸下来装上直升机。The helicopters will fly again and again and again.这些“直升机”将会一波又一波地实施空投.More than 2...
On large ranches, copters have sirens for scaring out cattle lost in the bush.在大的牧场里, 直升机装有警报器,可以把失散的牛从灌木丛中吓出来.Four US copters have gone down in Iraq in recent weeks.近几周以来,已有4架美军直升机坠落.High Technology - Enhances special a...