I also could not properly distinguish the words at full speed, even after listening to it at the slower speed. Thanks to the slower speed option, I knew he was saying, "Tú no usas la computadora." But at regular speed, it still sounded like "Tú gnomes as la computadora." With practice, my listening skills are improving enough that this is an unusual occurrence. Usually, I can determine where the sounds are blended. When we were kids, we would ask each other, "jeet?" ("Did you eat?")
Any advice from native speakers of Spanish would be greatly appreciated.
At full speed it made no sense based on how it sounded, so I reported that. Gnomesas are pesky things and I don't want them near mi computadora. I was able to guess based on the English words listed, combined with my knowledge of what the app has taught me so far. Figured it wouldn't give me a new word in audio without teaching it via other methods first. Listened to it slow to confirm :)