Tian
(
天
)
Tian
(
天
)
App Store
Google Play
Vocabulary
HSK 4
Day 9
楼梯
New
楼梯
楼梯
樓梯
l
ó
ut
ī
stairs, staircase
noun
Again
1
Hard
2
Good
3
Easy
4
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Space flip · 1–4 grade · ← → move
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