Translation of unterziehen

This is almost six hours, a long time for someone who has children and a day job. I recommend that we write eachother shorter emails and in both languages. Spanish and English next to eachother.
Every school has some narrow minded teachers who are not willing in investing in progressive educational process. They do not grasp that schooling methods today are different from last century's methods.
Actually, three hours was enough to get the impression of Macau. It had many narrow streets and some parts reminded us of a Mediterranean village. One can really see the charming Portuguese influence.