"He stands up and walks."

Translation: Dia berdiri dan berjalan.

[Jadajos]

What's the difference between jalan and berjalan?

[Away54]

Jalan = a noun. One of its meanings is "street". It can also be used as imperative sentence, e.g., "Jalan!" when you order someone to move.

Berjalan = a verb, formed by ber- + jalan. One of its meanings is "walk" (or "walking" or "walked").

[YandNique]

The Indonesian part said "Ia berdiri" should be “Dia”