know one's stuff in German
know one's stuff in German
Ahnung haben
(intransitive, informal) To be knowledgeable about and competent at a particular subject or task.
auskennen
(intransitive, informal) To be knowledgeable about and competent at a particular subject or task.
gut Bescheid wissen
(intransitive, informal) To be knowledgeable about and competent at a particular subject or task.
sich gut auskennen
(intransitive, informal) To be knowledgeable about and competent at a particular subject or task.