| 释义 |
free falln. & v.●n. (usu. hyphenated when attrib. 作定语时通常加连字符) 1 movement under the force of gravity only , esp. (尤指): (只受重力作用的)自由落体，自由下落a the part of a parachute descent before the parachute opens (降落伞张开前的)自由运动 b the movement of a spacecraft in space without thrust from the engines (太空中宇宙飞船在没有发动机推力时的)自由运动 2 any state of falling rapidly 快速下降，急剧下跌 prices were in free fall 价格急剧下跌 ●v. intr. (作 free-fall) move in a free fall 自由下落，自由降落 |