A pair of brothers and a pair of siblings
"This is my brother. He is lazy and lazy all the time. It doesn't matter if he drags the floor at home every day. He only holds his cell phone and tells me to do things."
"This is my sister"
"This is my brother. He's very good. Please be patient."
"Sister"
Didn't expect it! There really are such coincidences in the world!
Purpose: There is no "interest" in the trenches