Noviro
减速
Simplified 减速
Traditional 減速
Pinyin jiǎn sù
Definition to reduce speed; to slow down
前面红灯请减速
Qiánmiàn hóng dēng qǐng jiǎnsù
There's a red light ahead, please slow down
You might also see
速
sù
fast; rapid; quick; velocity
速度
sù dù
speed; rate; velocity; (music) tempo
HSK3
快速
kuài sù
fast; high-speed; rapid
HSK3
高速
gāo sù
high speed; expressway (abbr. for 高速公路)
HSK3
迅速
xùn sù
rapid; speedy; fast
HSK4
加速
jiā sù
to accelerate; to speed up; to expedite
HSK5
时速
shí sù
speed per hour
光速
guāng sù
the speed of light