Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
Google Play
Vocabulary
N3
Day 25
石油
New
石油
石油
せきゆ
petroleum, oil
noun
Sino-Japanese
Lv.3
Again
1
Hard
2
Good
3
Easy
4
Previous word
Space flip · 1–4 grade · ← → move
Next word