Cheng Fei reacts after women's floor exercise final of Beijing 2008 Olympic Games at National Indoor Stadium in Beijing, China, Aug. 17, 2008. Cheng Fei said on Friday that she has not yet decided whether to participate in the London Olympics in 2012. (Xinhua Photo) Photo Gallery>>>

     STUTTGART, Nov. 14 (Xinhua) -- Veteran Chinese gymnast Cheng Fei said here on Friday that she has not yet decided whether to participate in the London Olympics in 2012.

    "I will continue to train, but I am not sure how long I will be in the gymnasium," Cheng told Xinhua after she took first places at qualifying round of vault, balance beam and floor exercise at Stuttgart World Cup.

    Cheng, who had attended the Athens and Beijing Olympics, led the Chinese girls to the first-ever Olympic women's group gold in Beijing earlier in August.

    "It is not easy for me to attend two Olympics, but for London four years later, it is difficult to say (whether to participate or not), " the 20-year-old said.

    "Everything is possible," added she, also a three-time vault world champion.

    As for current Stuttgart World Cup, Cheng said her goal was to "finding back the feeling of international competition".