| 单词 | rock swallow |
| 释义 | Definition of rock swallow in English:rock swallownoun rare
OriginLate 18th century; earliest use found in John Latham (1740–1837), naturalist. Definition of rock swallow in US English:rock swallownoun rare
OriginLate 18th century; earliest use found in John Latham (1740–1837), naturalist. |
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