Chinese student Wu Xingyun (L) presents his invention during the opening day of the 42nd International Exhibition of Inventions of Geneva, in Geneva, Switzerland, April 2, 2014. The 42nd International Exhibition of Inventions of Geneva kicked off here on Wednesday. (Xinhua/Wang Siwei)
Fiacre Sophie from France presents her invention during the opening day of the 42nd International Exhibition of Inventions of Geneva, in Geneva, Switzerland, April 2, 2014. The 42nd International Exhibition of Inventions of Geneva kicked off here on Wednesday. (Xinhua/Wang Siwei)
Chinese student Song Wenzhu (L) presents her invention during the opening day of the 42nd International Exhibition of Inventions of Geneva, in Geneva, Switzerland, April 2, 2014. The 42nd International Exhibition of Inventions of Geneva kicked off here on Wednesday. (Xinhua/Wang Siwei)