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单词
free fall
释义
free fall
1.
自由落体
(运动)
;
(降落伞张开前的)
自由下落
2.
(火箭等的)
惯性运动
3.
(宇宙飞船在没有发动机推力时的)
自由下降
free-fall
(free fell)
vi.
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更新时间:2025/8/23 17:25:17