每一个中国人都应该记住四月十五日是国家安全日.
Every Chinese should that the Security Day is on April 15th.
由中国建设的肯尼亚蒙内铁路于五月三十日开通运行.它开启了非洲的世纪梦想.
Monbasa﹣Nerobi Railway Line in Kenya was built by China and put into use on May 30th and it started the century .