Authorities blame the clashes on violent elements among the protesters that they say have fired grenades and guns at soldiers who were forced to return fire.

VOA: standard.2010.05.15

and getting back to balancing the elements in our lives, very basically like Earth, water, fire.

回归生命中元素的平衡，基本上就是土、水、火。

瑜伽的魅力 - SpeakingMax英语口语达人