speed

speed

名词 speed:

distance travelled per unit time

同义词：velocity

a rate (usually rapid) at which something happens

同义词：swiftness, fastness

changing location rapidly

同义词：speeding, hurrying

the ratio of the focal length to the diameter of a (camera) lens system

同义词：focal ratio, f number, stop number

a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

同义词：amphetamine, pep pill, upper

动词 speed:

step on it

同义词：rush, hotfoot, hasten, hie, race, pelt along, rush along, cannonball along, bucket along, belt along

move faster

同义词：accelerate, speed up, quicken

travel at an excessive or illegal velocity

move very fast

同义词：travel rapidly, hurry, zip

cause to move faster

同义词：accelerate, speed up