从那时以来

• Since then , china has steadily ratcheted up the emphasis on r & d and innovation , setting goals such as creating 100 world - class universities in the 21st century and having science and technology contribute to 60 % of the economy by 2020
  从那时以来，中国越来越强调研究开发与创新，设置了在21世纪建立100家世界级的大学，以及到2020年科学技术对于中国经济的贡献率要达到60 % 。