Translation:Stay here, because I need your help!
This won't accept "Stay here because I need your help" as a correct answer, even though it knows this is the correct translation. For me, it continuously marks it as incorrect and the only solution I've found is to copy and paste it into the text field. I don't know why this works because what I'm pasting is identical to what I'm typing. It has to be some sort of glitch.
"Cxi" shows proximity. Within the course, it turns "tie" (there) to "cxi tie" (here.) In the real world, it's a little messier (but close enough.)
Edit: In this video I talk about ĉi. The link should take you directly to the correct moment in the video.