freefall

FREQ #45600

a. 自由落体的 n. 自由降落式（跳伞）

发音

其它 /ˈfɹiːˌfɔːl/

词形变化

freefalls 复数 freefalls freefallen freefalling freefalls 三单 freefell freefalling 现在分词 freefell 过去式 freefallen 过去式 freefallen 过去分词

别名

free-fall free fall

释义与例句

n.
  1. 1.

    A state of motion affected by no acceleration or force other than that of gravity.

    自由落体

    可数 不可数 物理
  2. 2.

    A state of motion but allowing for the presence of incidental air resistance not caused intentionally by devices such parachutes or wings.

    可数 不可数 物理
  3. 3.

    A rapid, uncontrolled decline or worsening.

    可数 比喻 不可数 引申义

    As civil war continues in Iraq, the U.S. president's approval ratings are in freefall.

v.
  1. 1.

    To drop in a state of freefall.

    不及物

    A base jumper attempts to freefall for as long as possible before triggering the parachute.

  2. 2.

    To decline or worsen rapidly and uncontrollably.

    比喻 不及物 引申义

词汇关系

名词

同义词 3

fall drop dip

上位词 4

fall drop decrease decrement

下位词 1

correction

相关短语

freefall style progressive freefall accelerated freefall universality of freefall in freefall acceleration of freefall

词源

From free + fall.

来源：wiktionary