Tian
(
天
)
Tian
(
天
)
App Store
Google Play
Vocabulary
HSK 7–9 ①
Day 24
攻关
New
攻关
攻关
攻關
g
ō
nggu
ā
n
to overcome difficulties, to tackle a key problem
verb
Again
1
Hard
2
Good
3
Easy
4
Previous word
Space flip · 1–4 grade · ← → move
Next word