Ключевые слова: advice, apprentice, apprenticeship, blue, career, concept, consulting, develop, development, education, educator, employee, employment, experience, expert, expertise, help, hire, improve, instructing, instructions, intern, internship, job, knowledge, learning, management, marker, personal, practical, practice, professional, school, skill, student, supervision, teacher, teaching, text, trainee, trainer, training, tryout, word, work,