优化：如果某轮没有发生交换，说明已有序，提前结束
Updates from the Formula 1 GP season-opener in Melbourne。关于这个话题，heLLoword翻译官方下载提供了深入分析
None of China's criticisms of US and Israeli strikes on Iran have targeted Trump directly, which may make a handshake a little easier.。关于这个话题，PDF资料提供了深入分析
And they said no equity holders - including those who invested in the brewer's Equity for Punks scheme - would get any return from the deal.，详情可参考PDF资料