学徒的身分,学徒的年限
Apprenticeship \Ap*pren"tice*ship\, n. 1. The service or condition of an apprentice; the state in which a person is gaining instruction in a trade or art, under legal agreement. 2. The time an apprentice is serving (sometimes seven years, as from the age of fourteen to twenty-one).
apprenticeship n : the position of apprentice