单词	planet wheel
释义	planet wheel noun : a gear wheel that revolves around the wheel with which it meshes in an epicyclic train Word History First Known Use 1799, in the meaning defined above
随便看	recyclings red red admiral red alder red alert red alga red algae red algas red alpine campion red amaranth red ant red antimony red ape red archangel red arsenic red arsenic glass red as a beet red ash red bag red ball red baneberry red bartsia red bass red bat red bay

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