Tian
(
天
)
Tian
(
天
)
App Store
Google Play
Vocabulary
HSK 6
Day 7
写字楼
New
写字楼
写字楼
寫字樓
xi
ě
z
ì
l
ó
u
office building
noun
Again
1
Hard
2
Good
3
Easy
4
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