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	sulcatest sulcations sulci SULCL sulcomarginal sulcus sulcus of ro sulcus of Rolando suld suldans suleiman i sulf- sulfa sulfa drug sulfacetamides sulfadiazine sulfadiazines sulfaer sulfaest sulfamethazines sulfamethoxazole sulfamezathines sulfamide sulfamidic acid sulfamoyl

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