The flashlight here is definitely not a flashlight! But mobile phones and computers!
In fact, I, my dear lady, really didn't think mobile phones were of any use at that time! Because, Xiaoxin bought a mobile phone, just for her boyfriend! The two of them are not in the same school and need to contact each other frequently! But the question is, Xiaoxin lives at her boyfriend's house and can see her after school. Does she need to keep in touch?
Conception: