n. 降落伞
vi. 跳伞
空投
parachute 降落伞
para-,保护,防御,chute,下降,管道,词源同deciduous.即减弱下降力道的工具,引申词义降落伞。
PARACHUTE, a kind of large and strong umbrella, contrived to break a person's fall from an airballoon, should any accident happen to the balloon at a high elevation. ["Supplement to the Encyclopaedia or Dictionary of Arts and Sciences," Philadelphia, 1803]