I found a bug, I modify the svn subpath from the parents path to child path, then the svn commits have not change.
Fist, I load svn which path is http://172.16.0.75:8080/svn/Solution/branches/, there are 216 Subversion Commits on the web http://172.16.0.129/diffusion/, then my leader told me I should load the child path which is http://172.16.0.75:8080/svn/Solution/branches/20100825_HD2_V1R1_Satellite_For_120315, then I found on the web http://172.16.0.129/diffusion/, there are 216 svn commits too. But in fact, there are only 42 svn commits...,