スムーズだったら
sumūzudattara
1. If/when smooth; If/when going smoothly
★ Common
Adjective
#6655
1. If/when smooth; If/when going smoothly
1. if it's the case
1. smooth (i.e. without problems)
1. not be found
1. If it comes out; When it comes out
1. If/when topped; If/when crowned
1. If/when shown; If/when I show
1. After; When…passes
1. If/when born; Once born