| 单词 | air-fountain |
| 释义 | Definition of air-fountain in English:air-fountainnoun
OriginMid 18th century; earliest use found in John Smeaton (1724–1792), civil engineer. Definition of air-fountain in US English:air-fountainnoun
OriginMid 18th century; earliest use found in John Smeaton (1724–1792), civil engineer. |
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