首页英语词典speedspeed英英释意

speed

英 [spiːd] 美[spid]
  • vi. 超速,加速;加速,迅速前行;兴隆
  • n. 速度,速率;迅速,快速;昌盛,繁荣
  • vt. 加快…的速度;使成功,使繁荣
  • n. (Speed)人名;(英)斯皮德

英英释意


1. distance travelled per unit time
2. a rate (usually rapid) at which something happens;
"the project advanced with gratifying speed"
3. changing location rapidly
4. the ratio of the focal length to the diameter of a (camera) lens system
5. a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression