2. Plastic cups refer to disposable containers for drinks and tea, which belong to non-degradable products and are the main source of "white pollution".
3. General beverage shops, hot and cold beverage shops, tea shops, hotels, restaurants and coffee shops use the most plastic cups, providing various plastic cups for take-away drinks and on-site use.
4. Many people throw away plastic cups after drinking, which makes sex plastic cups the main source of "white pollution".