If they are aligned properly, when you're standing up, you should be able to draw a straight line from a point just in front of your shoulders, to behind your hip, to the front of your knee, to a few inches in front of your ankle.
Jika mereka terbentuk baik, saat kamu berdiri, tulang belakangmu akan membentuk garis lurus dari bahumu ke belakang pahamu, ke depan lututmu, sampai beberapa inchi di depan pergelangan kakimu.