Vocabulary consisting only from characters you are able to read
火力
かりょく
heating power, steam powermix
前後
ぜんご
(1)front and rear, front and back, before and behind, (2)before and after, (3)order, context, (4)consequences, (n,vs) (5)inversion, reversion, getting out of order, (6)co-occurring, (n-suf,n) (7 mix
いつの間にか
いつのまにか
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3