单词	annular gear
释义	annular gear noun : internal gear Word History First Known Use 1854, in the meaning defined above
随便看	half-shrubby half-sib half-sibling half-silvered half-slip half-snap half-sole half-soled half-soles half-soling half-space half-staff half-stopped half-stripe half-sword half-timber half-timbered half-timbering half-time half-timer half-toe half-tongue half-track half-tracked half-truth

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