求翻译：冰的奥运会正式比赛项目共有三个大类：单人滑、双人滑与冰上舞蹈。此外，花样滑冰还包含同步滑冰、四人滑（Fours）、冰上芭蕾、冰上杂技等等，但它们的流行与受欢迎程度不及四个奥运会正式项目是什么意思？

Ice Olympic event three major categories: single skating, pairs and ice dancing. In addition, figure skating also includes synchronized skating, four slip (fours), the ice ballet, ice acrobatics, but their popularity and the popularity of less than four Olympic project

Ice the Olympic Games there are 3 main categories: Elena Sokolova, double slides and ice dancing. In addition, figure skating ice skating, it also contains the synchronization (Fours slide 4 people on the ice), Ballet, acrobatics, and so on on the ice, but with their popular popularity of less than

The ice Olympic Games regulation game project altogether has three big kinds: On the single skating, the pair skating and the ice dance.In addition, the figure skating also contains the synchronized ice-skating, four people slides on (Fours), the ice on the ballet, the ice acrobatics and so on, but

Ice official competitions of the Olympic Games there are three broad categories: solo skating, and Ice Dancing and pairs. In addition, also included figure skating synchronized skating, four sliding (Fours) on ice, Ice Ballet, acrobatics, and so on, but they are less popular and popular four Olympic