China is the worlds second largest economy.As Chinas economy continues to expand,its spillover effect is increasingly felt and it has drawn more and more attention from the rest of the world.The past 5 years saw a moderation of Chinas economic growth,though still at a quite high level.In 2015,GDP growth dropped from 7.3％ in 2014 to 6.9％.The intational community is closely watching and quite many people have expressed worries.