バックボーンだったら
bakkubōndattara
1. If it were a backbone; If it had a backbone
★ Common
Noun
#78052
1. If it were a backbone; If it had a backbone
1. if it's the case
1. (emotional) backbone; support
2. backbone (of a network)
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