credentialed/ˌnɑːn.krɪˈden.ʃəld/形容词未经认证的Critics say noncredentialed teachers are being thrown into classrooms with little or no preparation.批评人士说,没有资格的教师在几乎没有或根本没有准备的情况下就被扔进教室去上课。想跟读,去练习