stażysta in English:

We need to find an intern to the office.

We must ensure we do not exploit our interns – they should feel that their time with us has been interesting and enjoyable; not stressful and unpleasant.

She's a trainee.

A management trainee is an individual who undergoes training for managerial or supervisory positions. A management trainee program is the best way to prepare employees to become managers in the future.

John is working as a trainee to gain valuable work experience.

We have a new trainee in a team.

He first worked for the company as a trainee in 1955.

Kate is a trainee nurse and today she is at the hospital to watch and learn.

There were many trainees in the restaurant.

train -> trainee

If you have any questions ask me or the trainee.

Only a few new trainees are knowledgeable.

It’s always cheaper to get your hair cut by a trainee.

The trainee could hardly bear the burden of the task.

Because the new trainee did things sluggishly, he was told that he'd be fired if he didn't start taking his job seriously.