这怎么回事这是 这干吗啊这是
“What's going on here? What are they doing?”
THE DIALOGUE REEL
是啊 是啊
“True.”
这怎么回事 这是 这 干吗 啊 这是
“What's going on here? What are they doing?”
“What's going on? Where is this?”
“What do you think you are doing? Stop this right now!”
Tagging '这是' onto the end of a question is a common spoken Mandarin colloquial inversion used to convey immediate shock, annoyance, or fluster.
LEARNING CHUNKS & PARTICLES
what on earth is going on here?
A typical Northern colloquial pattern where the demonstrative '这是' is added at the end for rhythmic emphasis and disbelief.
what are you doing?; what's the big idea?
A colloquial challenge expressing irritation or shock when someone does something intrusive or unexpected.
Adds emotional intensity and exasperation to the rhetorical challenge.