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People usually use the disposable paper cups , which often confuse with others. As we can see,the 24 English Letters on the identified cup can be applied . And remain red letters at the bottom. So that people not only can easily mark their own letters according to their preferences ,but also can increase interest through drinking.
Huicun Liu
Guangzhou, China
Huicun Liu,
Guangdong University of Technology
Deguang Xie,
Guangdong University of Technology
Xueyan Dong,
Guangdong University of Technology
Yizhou Lin,
Guangdong University of Technology
