单词	rule joint
释义	rule joint noun : a knuckle joint having shoulders that abut when the connected pieces are opened out fully and thus permit folding in one direction only Word History First Known Use 1767, in the meaning defined above
随便看	orthoptera orthopterae orthopteral orthopteran orthopterans orthopteras orthopterist orthopterists orthopteroid Orthopteroidea orthopteroids orthopterological orthopterologist orthopterology orthopteron orthopterons orthopterous orthoptics orthoptists orthoquartzite orthoquinone Orthorhapha orthorhombic orthorhombic system Orthorrhapha

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