メタンだったら
metandattara
1. If methane; When methane
★ Common
Noun
#64653
1. If methane; When methane
1. if it's the case
1. methane
1. methane gas
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