says…
En Adposition aquellos Determiner tiempos Noun , se Pronoun desempeñó Verb como Adposition profesor Noun invitado Adjective en Adposition la Determiner Universidad Proper noun de Adposition Georgetown 
Proper noun .
Adposition
Determiner
Noun
Pronoun
Verb
Adposition
Noun
Adjective
Adposition
Determiner
Proper noun
Adposition
Proper noun
At the time, he served as a guest professor at Georgetown University. At the time, he served as a guest professor at Georgetown University.
Words and sentences
aquellos
-
Alternative spelling of aquéllos; those ones (over there; implying some distance). The unaccented form can function as a pronoun if it can be unambiguously deduced as such from context.
desempeñó
third-person singular preterite indicative of desempeñar
como
-
- as (to such an extent or degree)
- like, about (approximately)
invitado
-
invited
en
- in, at, on
- in (a time)
- in (a language)
- used after some verbs and translated by various prepositions in English
- in (in various expressions)
de
-
The name of the Latin-script letter D/d.
Georgetown
Georgetown (the capital city of Guyana)
se
-
- third person (also used for usted and ustedes) reflexive direct or indirect object oneself, himself, herself, itself, yourself; each other; one another
- used to convey the meaning of the English passive voice in the third person and with usted and ustedes