El freno means brakes and they make a squealing noises when they are broke.
Spanish:
Cendal es una palabra francesa antigua, es un material de seda delgado y liviano, que se utiliza principalmente para confeccionar vestimentas ceremoniales, vestimentas de iglesias y pancartas.
English:
Cendal is an Old French word, it is a thin and light silk material, chiefly used to make ceremonial clothing, church vestments, and banners.
Answer:
Blanquear los dientes
Explanation:
I think it would be blanquear since it makes sense that he would get his teeth whitened at the dentist.
