

La humedad deteriora las paredes de la casa.
[la umeˈðað deteˈɾjoɾa las paˈɾeðez ðe la ˈkasa.]
Damp damages the walls of the house.
¿Qué factores deterioran la calidad del aire en la ciudad?
[¿ˈke fakˈtoɾez ðeteˈɾjoɾan la kaliˈðað ðel ˈajɾe en la θjuˈðað?]
What factors worsen the air quality in the city?
Con el tiempo, la relación entre ellos se deterioró mucho.
[kon el ˈtjempo, la relaˈθjon ˈentɾe ˈeʎos se deteɾjoˈɾo ˈmuʧo.]
Over time, the relationship between them deteriorated a lot.
"deteriorar" is in the lesson "Verbs 7" (Level 19), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,369 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.