Answer:
A child ties a rope to a stone and spins it evenly at 7 radians/ second. ( This is the translation in english to your sentence).
The word 'shy' in Spanish is 'reservado' for a boy and 'reservada' for a girl. However, 'reservado' mean reserved, which is a synonym of shy. :)
Soy mexicano y creeme lo que nunca falta en su comida es el chile.