layman
noun [ C ] uk/ˈleɪ.mən/ us/ˈleɪ.mən/ -men uk/ˈleɪ.mən/ us/ˈleɪ.mən/ (also layperson)
(CHURCH)
普通教徒，平信徒
someone who is part of a religious organization but who is not paid or specially trained
Compare: laywoman
(NOT TRAINED)
外行，门外汉
someone who is not trained in or does not have a detailed knowledge of a particular subject