suisodattara
1. If hydrogen; When hydrogen
★ Common
Noun
#89058
1. If hydrogen; When hydrogen
1. if it's the case
1. hydrogen bomb
1. hydrogen (H)
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