Listen, read and learn.
(Klausies, lasi un mācies!)

shoulder – [ˈʃəʊldə] – plecs

hand – [hænd] – plauksta

elbow – [ˈɛlbəʊ] – elkonis

finger – [ˈfɪŋɡə] – pirksts

arm – [ɑːm] – roka
Piemērs:
Are your handsclean? — Vai tavas plaukstas ir tīras?
I've got five fingers on each hand. — Katrai plaukstai man ir pieci pirksti.