If you were paying attention, you learned that alcohols are organic compounds with hydroxyl groups, if you dehydrogenate them, the hydroxyl converts to a carbonyl and they become dehydrogenated alcohols or aldehydes.

如果你留心话，你就会知道有有机化合物， 如果你将它们脱氢， 就会转化为羰， 它们就会变成脱氢或醛。