It is true that outside forces, such as foreign Sunni jihadists and Shia militias supported by Iran, have played a part in fomenting the violence now under way.

• 确实，像外部的逊尼派伊斯兰圣战主义者和伊朗支持的什叶派民兵这样的外部势力，在挑起如今愈演愈烈的暴力事件方面起了不小作用。