Сначала мери работала лаборанткой к

Сначала мери работала лаборанткой кафедры , через несколько лет она поступила в аспирантуру и стала работать преподавателем

Результаты (английский) 1:

At first Mary worked a chair a few years later she enrolled in graduate school and began working as a teacher

Результаты (английский) 2:

First, Mary worked as a laboratory assistant of the department, she enrolled in a few years in graduate school and began to work as a teacher

Результаты (английский) 3:

at first mary worked лаборанткой department, after a few years she was in graduate school and started to work as a teacher