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一氧化二氮
yīyǎnghuàèrdàn
1. nitrous oxide N2O
2. laughing gas

Character Breakdown

一
yī
one; a, an; alone
HSK 1 1 丶
氧
yǎng
oxygen
HSK 6 10 丶
化
huà
to change, to convert, to reform; -ize
HSK 3 4 丶
二
èr
two; twice
HSK 1 2 丶
氮
dàn
nitrogen
12 丶

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Chinese