Liu admitted that after 2016 Rio Olympic victory, she began to consider retirement but eventually changed her mind.

"At last I decided to come back. The reason is because I still have passion for the sport. In addition, I really think I should do something to promote race walk in China," she said.

"I won the Olympic title but race walk is still such a small event in China that many people don't know much about it. Everytime I think about it, I feel at lost," she added.

"So I want to stay on to promote it, to let more people know about race walk," Liu said.

Liu's promotion plan includes a title defence in next year's Tokyo Olympic Games but she is aware of the difficulty.

"China will face strong challenges from other race walk powers in Tokyo. I hope my return can help my country keep the title at home," Liu said.

【体坛英语资讯：Three-time world champion Liu Hong comes back stronger】相关文章：

★ 娱乐英语资讯：TV viewership still down in wake of 100-day writers strike

★ 体坛英语资讯：Beckham says hes fit for England selection

★ 体坛英语资讯：Zambrotta returns to Italy with AC Milan

★ 体坛英语资讯：Netherlands lands Prix title, China takes silver

★ 体坛英语资讯：Peng upsets Mauresmo to reach semis at China Open

★ 体坛英语资讯：Russias historic win over England makes Hiddink proud

★ 体坛资讯：China prepare for Asian Cup semi-final showdown: coach

★ 体坛英语资讯：Sprinter Gay, swimmer Hoff win top US honours

★ 娱乐英语资讯：Halle Berry desperate to work in beaus restaurant

★ 体坛英语资讯：Turkey score stunning comeback win, Switzerland beat Portugal