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Write 洞 (dòng) — cave; hole; zero (unambiguous spoken form when spelling out numbers) | HSK Ace
Handwriting
HSK 5
洞
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HSK 5
洞
dòng
cave; hole; zero (unambiguous spoken form when spelling out numbers)
Example
墙
上
有
个
洞
，
得
找
人
修
补
。
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