The factory produces propellant for ballistic missiles.这个工厂为弹道导弹生产推进剂。China regrets the abrogation of the Anti - Ballistic Missile Treaty.中国对《 反 弹道导弹条约》失效感到遗憾.an intercontinental ballistic missile洲际弹道导弹The payload of a b...
我的背包太大了，行李架上放不下。My rucksack was too big for the luggage rack.回首过去，她觉得自己真不该放下背包不再徒步旅行。Looking back, she feels she should never have hung up her backpack.查利费力地将背包背到楼上自己的公寓里。Charlie humped his rucksack up the stairs to his ...