Tian
(
天
)
Tian
(
天
)
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Vocabulary
HSK 7–9 ③
Day 30
脑筋
New
脑筋
脑筋
腦筋
n
ǎ
oj
ī
n
brains, way of thinking
noun
Again
1
Hard
2
Good
3
Easy
4
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