"If you see Worf there, then tell me!"
Translation:pa' wo'rIv Daleghchugh, vaj HIja'!
They can't put it in the app, but you can easily look it up on the web. Here's one: https://en.wikiversity.org/wiki/Klingon_prefixes
Also, the course has a "tips and notes" section that you can't get in the app. Try the desktop web version; I'm sure you'll find the charts in one of those sections.