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Stroke order
Sentence examples
空洞的理论
kōngdòngde lǐlùn
empty theory
空洞的句
kōngdòngde jù
empty words
内容空洞的文章
nèiróng kōngdòngde wénzhāng
an article empty of matter
空洞的论据
kōngdòngde lùnjù
an empty argument
臭氧空洞
chòuyǎng kōngdòng
ozone hole
牙齿上的空洞
yáchǐ shàng de kōngdòng
cavities in teeth
肺空洞
fèi kōngdòng
pulmonary cavity
