Red Warning: It's almost the end of the year, and security is not good.

Red Warning: It's almost the end of the year, and security is not good.
If you must carry a single-shoulder laptop backpack, please write "Local Express" on the front of the backpack ";
For medium-sized portable travel bags, please write "pipe dredging ";
For large luggage tie rods, please write "professional cleaning"; carry a large number of cartons, please write "business fast food ";
The wallet should be written into: Sterile paper;
The MP3 should be wrapped in a piece of paper and written to the book: quick-acting rescue pills;
If your body carries more valuable things, you 'd better hold a chicken and write "be careful with bird flu ".