落后的想法 /luòhòu de xiǎngfǎ/ angolul

shibboleth [shibboleths]▼(a common or longstanding belief, custom, or catchphrase associated with a particular group, especially one with little current meaning or truth)
noun
[UK: ˈʃɪ.bə.leθ] [US: ˈʃɪ.bə.ˌleθ]