他减慢速度，向左急转。

He reduced speed and turned sharp left.

《牛津词典》

这种摩擦往往会减慢风的速度，使它们吹散污染物的效率大大降低。

This friction tends to slow the speed of winds, making them far less efficient at dispersing pollutants.

youdao

航天飞机重返地球大气层时因有摩擦力而减慢速度。

The force of friction slows the spacecraft down as it re-enters the earth's atmosphere.

《牛津词典》

He's trying to relax us here by slowing down the rate of harmonic change here.

他希望通过减慢泛音的变化速度让大家在这里快要睡着了。

耶鲁公开课 - 聆听音乐课程节选