Oh，I understand what you mean. 1. ri4（日）means sun this character is the shape of sun，一 in the 口 means macula. Detail could see here http://www.italki.com/answers/question/89857.htm?src=italki-uhpr; 2. shai(晒） means sun dry 3. yang2（阳），we usually say yang2 guang1 which means sunshine oh，关于阳，还有个有趣的小故事——渴鹿奔阳焱。