shibboleth

在这家公司，使用苹果电脑被认为是设计师群体的标志。

In this company, using a Mac is seen as a ___shibboleth of the design team.

在秘密社团中，特定的暗号被用作识别真伪成员的测试。

In the secret society, a special ___shibboleth was used as a test to identify genuine members.

‘顾客永远是对的’这句话已成为零售业的一句空话，没人真正相信。

"The customer is always right" has become a meaningless ___shibboleth in retail, though no one truly believes it.