несколько лет она играла небольшие

несколько лет она играла небольшие роли прежде чем сыграла роль главной героини

Результаты (английский) 1:

for several years she played small roles before you played the role of the heroine

Результаты (английский) 2:

a few years she played small roles before played the role of the main character

Результаты (английский) 3:

for several years, she played a small role before played the role of the main character