Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
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Vocabulary
Hiragana
Voiced sounds
ぞ
New
ぞ
ぞ
zo
Hiragana · Voiced sounds
Again
1
Hard
2
Good
3
Easy
4
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