经过三个月的试用期，他终于成为了一名正式员工。

After three months of probation, he finally became a ___full-fledged employee.

经过一年的试用期，她终于成为了公司的正式员工。

After a year of probation, she became a ___full-fledged employee of the company.

经过三年的训练，她已经成为一名成熟的医生。

After three years of training, she has become a ___full-fledged doctor.