be slow on the uptake

to be slow to understand new ideas I tried to explain the new database, but they were remarkably slow on the uptake.

Name	Pronounced	Usage
Benito	be-NEE-to	Spanish, Italian
Zayna	-	Arabic
Sharru-Kinu	-	Ancient Near Eastern
Bernardetta	-	Italian
Annukka	AHN-nook-kah	Finnish
Olujimi	-	Western African, Yoruba