Lunch 1. Problem 1.1 about Delivery food at school 1.1.1 Place: Lack of places to eat 1.1.2 Food smell 1.1.3 Food stains 1.1.4 Left food 1.1.5 waste of human power 2. Kinds 2.1 Restaurant food 2.1.1 Asian food 2.1.1.1 Chinese food 2.1.1.2 Korean food 2.1.1.3 Vietnam food 2.1.1.4 Japanese food 2.1.1.5 Indian food 2.1.1.6 Thai food 2.1.2 Western food 2.1.2.1 Italian food 2.1.2.2 American food 2.2 Fast food 2.3 delivery food 2.3.1 Chinese food 2.3.2 Korean food 2.3.3 Fast food 2.3.3.1 hamburger 2.3.3.2 sandwitch 2.3.3.3 Pizza 2.4 Instant food 2.5 Lunch box 2.6 Subtopic 6 3. Solution 3.1 using personal plate 3.2 Multipurpose desk 3.3 Bojagi: cloth wrapper 3.4 Big paper like a post-it 3.5 aromatic pack like a Febreze 3.6 Bamboo case 3.7 keep domestic animals at campus 3.8 Recycle machine for left food 3.9 take-back way for delivering plates 4. Place 4.1 Reataurant 4.2 Home 4.3 University 4.3.1 Cafeteria 4.3.2 Student Restaurant 4.3.3 Dormitory 4.3.4 Lecture room 4.3.5 Laboratory 4.3.6 campus