减速的英文：
decelerate
deceleration
Decrease Speed
lose way
retard
retarding
rev down
slow down
slow up
slowdown
slowup
speed-down
throttle

参考例句：

Slack off/up as youapproach the junction.
接近交叉口时要减速.

Remember to throttle down before you go round a sharp corner.
务必记住，急转弯前要减速。

A spin that tends to retard, arrest, or reverse the linear motion of an object, especially of a ball.
回旋使一个做直线运动的物体减速、停滞或倒转的一种旋转，尤指一个球

The computer decelerated the spaceship.
计算机使宇宙飞船减速。

retard the mechanism,eg of a clock
使机械装置减速（如时钟的）

Slack up before you reach the crossroads
到交叉路以前减速。

Toyota denied an across-the-board slowdown in vehicle development.
丰田否定了汽车发展一律减速。

Super cute retro set thats sure to make a statement!
是肯定发表声明的超级逗人喜爱的减速火箭的集合！

We suffered the sudden slowing as the flaps were lowered.
我们经历了襟翼放下时的突然减速。

The plane let down through heavy overcast.
飞机穿过厚厚的云层减速下降。

decelerate是什么意思：
v. （使）减速

Inflation has decelerated remarkably over the past two years.
过去的两年里通货膨胀已经明显放缓。

We decelerated (the engine) long before we came to a stop.
早在停止之前，我们就先使引擎减慢。

Sudden deceleration may also result in shearing injury to the intima of the aorta
突然减速也可能造成主动脉内膜的剪式裂伤。

deceleration是什么意思：
n. 减速

Inflation has decelerated remarkably over the past two years.
过去的两年里通货膨胀已经明显放缓。

We decelerated (the engine) long before we came to a stop.
早在停止之前，我们就先使引擎减慢。

Sudden deceleration may also result in shearing injury to the intima of the aorta
突然减速也可能造成主动脉内膜的剪式裂伤。

decrease是什么意思：
v. 减小，减少
n. 减小，减少；减少量，减少额

Decrease indent of paragraph one level /Decrease Indent
把段落缩进程度减小一个等级/减小缩进

Is your production on the decrease?
你们的产量在减少吗？

The decrease in salary payable is $20.
应付工资减少额是20美元。