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How to say a concise four-character sentence to remind people entering the door to stamp their feet at the door in winter and clean the snow on the soles of their shoes?

Take off your shoes and go outdoors - "Liezi·Huangdi"

Hope it is useful to you!

1. "Snow" is everywhere, so don't dig into it.

2. If you are covered in fresh "snow", wipe it dry before entering!

3. Don’t “snow” me, just go in!

4. Walking on the snow without leaving a trace