The Iwatobi Swim Club has a full roster now.
As they begin to practice, they run into a little trouble.
After a certain member claims that his swimsuit is to blame, the club makes a trip to buy new swimsuits.
to push the elbow toward 
the center of the body.
um den Ellbogen 
zur Körpermitte zu drücken.
estirarlo con el brazo 
contrario hacia el centro.
y estirarlo con el brazo 
contrario hacia el centro.
e con l'altro spingere 
il gomito verso il centro del corpo.
enquanto puxa o cotovelo
 com o outro braço.
толкать локоть к позвоночнику.