Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
Google Play
Vocabulary
N3
Day 28
膝
New
膝
膝
ひざ
knee, lap
noun
native Japanese
Lv.4
Again
1
Hard
2
Good
3
Easy
4
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Space flip · 1–4 grade · ← → move
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