单词	safety catch
释义	safety catch noun : a device in an elevator or hoisting appliance to ensure safety from falling in case the mechanism fails to operate properly Word History First Known Use 1952, in the meaning defined above
随便看	branchii branching branching (out) branching foxtail branching off branching out branchings branchio- Branchiobdella branchiobdellae branchiobdellas branchiobdellid branchiobdellidaes branchiocardiac branchiocranium branchiopallial branchiopneustic branchiopod Branchiopoda branchiopodae branchiopodans branchiopodas branchiopods branchiosaur Branchiosaurus

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