减速带

减速 jiǎnsù HSK 7 #6,575

to slow down; to decelerate / to reduce speed

减速慢行 jiǎnsùmànxíng

slow down / reduce speed and proceed cautiously

倍速播放 bèisùbòfàng

to play back at increased speed (1.5x, 2x) / speed-watching / speed-listening

加速 jiāsù HSK 5 #4,124

to accelerate / to speed up

时速 shísù HSK 7 #7,304

speed per hour / hourly speed

球速 qiúsù #31,405

ball speed / pitch speed / speed of a thrown / hit ball

高速过弯 gāosùguòwān

high-speed cornering / to take a corner at high speed

网速 wǎngsù

internet speed / network speed

倍速 bèisù

playback speed / speed multiplier (e.g. 2x)

减少 jiǎnshǎo HSK 4 #4,076

to reduce; to decrease / to lessen; to cut down