Yeah, particularly the three main bubbles in the bottom panel seem off. I'm busy translating something else, so here's a rough version of my interpretation:
Star: You also call Daiyousei Dai-chan, right? [Daiyousei being more of a description, "major fairy", than a name] Cirno: Well, since that's what has the strongest ring to it Star: Basically, for the teacher [sensei], "Sensei" has the strongest ring to it.
..ning~I go now..morning..Good mor..Good morningLong time no see! Keine!...that Cirno kidWaa? Keine is meanie Keine?!she's angryAs always, someone doesn't learn her lesson.Does New Year makes me fat?"Keine-sensei"!huh?Huh~...?In other words, the word of the teacher for the teacher is "teacher"That manner of speech is not allowed.She doesn't really mean itThat sort of means a lot of thingsIf she was a bigger fairy than yourself, would you still call her "Dai-chan"?