3. Since its launch in 2010, the 12306 ticketing system has been upgraded many times to fix bugs and provide better service during the Spring Festival travel rush, or Chunyun.
4. Denmark, Norway, Switzerland, the Netherlands and Sweden are the world's happiest countries, according to the survey of 156 countries. Rwanda, Burundi, the Central African Republic, Benin and Togo -- all nations in Sub-Saharan Africa -- are the least satisfied with their lives, the report said. China ranks 93rd in the list.
Here, you may be delegates of your governments, business people, organisers, reporters or poiticians - but really you are mothers and fathers, brothers and sister, aunts and uncles - and all of you are somebody's child. 在这里，您可能是您政府商业人士的代表、组织者、记者或政客。但您们也是父亲和母亲、兄弟和姐妹、阿姨和叔叔，你们都会或多或少的为了下一代而活着。