| 释义 |
〔backpack〕a parachute in a backpack; an astronaut's backpack.背伏降落伞包；宇航员背包〔backpack〕To carry in a backpack.背伏：用背包携带〔backpack〕A piece of equipment, often containing life-support devices, designed to be used while being carried on the back:背伏的东西：设计成背在背上使用的一种装备，通常包括生活供应设备： |