N-VAR 学徒身份;学徒期 Someone who has an apprenticeship works for a fixed period of time for a person who has a particular skill in order to learn the skill. Apprenticeship is the system of learning a skill like this. 学徒身份;学徒期
After serving his apprenticeship as a toolmaker, he became a manager.
结束了工具匠的学徒期以后,他当上了经理。
...a period of apprenticeship.
学徒期
SYN traineeship, probation, studentship, novitiate or noviciate