DICT.TW Dictionary Taiwan

 free fall /-ˌfɔl/ 名詞

 free fall
      n 1: the ideal falling motion of something subject only to a
           gravitational field
      2: a sudden sharp decrease in some quantity; "a drop of 57
         points on the Dow Jones index"; "there was a drop in
         pressure in the pulmonary artery"; "a dip in prices";
         "when that became known the price of their stock went into
         free fall" [syn: drop, dip, fall]