China has once again proved its (able)to change the world with the“new four great inventions”：high-speed railways，electronic payments，shared bicycles and online shopping．

    They're related to China's high-tech innovation(创新) has improved the quality of people's lives，according to a survey (make)by the Belt and Road Research Institute of Beijing Foreign Studies University．

    “My wallet is no longer in use．I can buy and eat whatever I want simply with a fingertip on my phone，”said university student，adding that“even pancake sellers are using mobile payment．

    The bikes (them)are not new，but the operating model of bike-sharing base)on satellite navigation system，mobile payment，big data and other high technologies．

    China has entered a new innovative era，thanks to the large amounts of capital China has invested in (encourage)innovation，said Bernhard Schwartlander，WHO Representative in China．

     is increasingly clear that China is innovating and no longer copying Western ideas．This is (especial)true in mobile，where China is leading in many ways such as…social messaging app WeChat，she said．This is partly because China skipped over the PC era and went directly to mobile．China has the  (large)mobile use in the world．