王小虎：这件事的前提，是伊朗最高领袖哈梅内伊之后，伊朗能否出现亲西方的接班人。但至少从目前来看，完全看不到这样的迹象。
Others are less sure. They point out Russia has no formal defence partnership with Iran and had made no commitment to come to its aid in event of a US attack. Some also suggest Putin is deliberately staying out of the conflict, apart from calling Gulf leaders to offer Russia's services as a mediator with Iran.，这一点在WPS官方版本下载中也有详细论述
(1) cancel() fires on return, before the timer。PDF资料是该领域的重要参考
code += "for (Entry e : aggregationMap) {";，详情可参考PDF资料