Tian
(
天
)
Tian
(
天
)
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Vocabulary
HSK 7–9 ③
Day 28
保质期
New
保质期
保质期
保質期
b
ǎ
ozh
ì
q
ī
shelf life, expiration date
noun
Again
1
Hard
2
Good
3
Easy
4
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