Beinet gjør vondt hele dagen, men hun går likevel på skolen.

The leg hurts all day, but she still goes to school.

Breakdown of Beinet gjør vondt hele dagen, men hun går likevel på skolen.

• hun: she
• gå: to go
• skolen: the school
• men: but

Questions & Answers about Beinet gjør vondt hele dagen, men hun går likevel på skolen.

Why is it beinet and not just bein?

Bein is the indefinite form (a leg / a bone).
Beinet is the definite form (the leg / the bone).

Norwegian usually uses the definite form when both speaker and listener know which body part is meant (often the person’s own leg), so beinet is natural here.
Spelling note: you may also see benet; both bein and ben are accepted forms.

Does bein mean “leg” or “bone” here?

Literally, bein can mean both bone and leg, depending on context.
In everyday speech, when talking about pain and walking/going to school, beinet will normally be understood as the leg rather than the bone.
If you specifically meant “bone” in a medical context, you’d usually make that clear from the context or add more detail.

Why do we say gjør vondt and not er vondt?

The fixed expression for “hurts” in Norwegian is å gjøre vondt (“to do hurt” / “to cause pain”), not å være vondt.
So you say Beinet gjør vondt = “The leg hurts”, or Det gjør vondt = “It hurts”.
Using er vondt would sound wrong in this meaning; er vond is used more like “is evil/bad” in character or moral sense.