Then he slowed down and began making a rocket.
然后他放慢了速度，开始制造火箭。
他减慢车速。
他把车放慢速度。
With this in mind he slowed down the car.
考虑到这一点，他放慢了车速。
He has slowed down a lot since his heart attack.
自心脏病发作以来，他的动作迟钝多了。
He slowed his car down while driving in heavy traffic.
他在车辆拥挤的路上驾驶时，放慢了车速。%。
He ran, and then slowed down to a walk.
他跑着，然后放慢速度步行。
He was still taking some medication which slowed him down.
他仍然在服用能够让他放松下来的药物。
He has slowed down a lot since he was injured in that accident.
自从在那次事故中受伤后，他行动迟缓多了。
He has slowed down a lot since he was injured in that accident.
自从在那次事故中受伤后，他行动迟缓多了。
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