| 单词 | free fall |
| 释义 | free fall 1. the hypothetical fall of a body such that the only force acting upon it is that of gravity. 2. the part of a parachute jump that precedes the opening of the parachute. 3. a decline, esp. a sudden or rapid decline, as in value or prestige, that appears to be endless or bottomless: The economy was in a free fall all winter. Also, free-fall (for defs. 1, 2). [1915-20] |
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