speed单词什么意思_speed单词解释 speed的反义词speed的例句

名词速度; 快速; 昌盛; （汽车的）变速器，排挡

及物/不及物动词急行，加速

不及物动词加速; 超速; 迅速前行; 兴隆

及物动词加快…的速度; 使成功，使繁荣

1. 七彩网.英语单词

1. speed：self programmed electronic equation delineator; 自编程电子方程图解器

2. speed：single pointemergency equipment divestment; 应急装备单点解脱机构

2. speed的解释

The form of the past tense and past participle is sped in meaning 5 but speeded for the phrasal verb. 义项 5 的过去式和过去分词为sped，但在短语动词中则为 speeded。

noun

1. changing location rapidly

Synonym: speedinghurrying

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

Synonym: amphetaminepep pillupper

3. a rate (usually rapid) at which something happens

e.g. the project advanced with gratifying speed

Synonym: swiftnessfastness

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

Synonym: focal ratiof numberstop number

5. distance travelled per unit time

Synonym: velocity