The girl's rosy lips were slightly upturned, showing that she was in a good mood. She intently erased the Arabic numerals on the whiteboard, wiping the empty space clean and dry. With her other hand, she picked up a water-based pen and added characters to the blank space. The words on the whiteboard became:,"35 days left until the college entrance examination;",It's rare to have a holiday, and the street is crowded.。