イオンエンジンだったら
ion'enjindattara
1. If it were an ion engine.; When it is an ion engine.
Noun
#246173
1. If it were an ion engine.; When it is an ion engine.
1. if it's the case
1. engine
1. ion
1. not be found
1. Sterling engine
1. If it comes out; When it comes out
1. If/when topped; If/when crowned
1. If/when shown; If/when I show