スピードダウンだったら
supiidodaundattara
1. If/when slowing down; If/when the speed decreases
Noun
#170929
1. If/when slowing down; If/when the speed decreases
1. speed
1. if it's the case
1. speeding up; speed-up
1. speedway
1. not be found
1. If it comes out; When it comes out
1. If/when topped; If/when crowned