Tian
(
天
)
Tian
(
天
)
App Store
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Vocabulary
HSK 7–9 ③
Day 1
底子
New
底子
底子
d
ǐ
zi
foundation, basic skills
noun
Again
1
Hard
2
Good
3
Easy
4
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Space flip · 1–4 grade · ← → move
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