In order to attract the rabbit's own stem cells to re-grow the cartilage, channels in the scaffold were filled with a growth factor protein.

VOA: standard.2010.08.11

We started to innovate, come up with all kinds of features that attract the Chinese Internet users.

不断创新，设计出各式各样的新功能,来吸引中国的网民。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选