当年的巴格达（Baghdad）和巴士拉（Basra），在两个帝国之间以此拉锯，今天依然是伊朗和沙特争夺影响力的最前线。
Source: Computational Materials Science, Volume 266。关于这个话题，体育直播提供了深入分析
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That image has always stuck with me, both as a sobering comment on my sex and as a grisly worst-case scenario. So it was strange, this fall, to be looking for a bumpy ride. Some sixteen million flights crisscross the United States each year. Of those, roughly one in every two hundred and fifty gets hit by moderate-or-greater turbulence—strong enough to make passengers feel “a definite strain against their seat belts,” as the National Weather Service describes it. One in every three thousand flights encounters severe turbulence: “The airplane may momentarily be out of control. Occupants of the airplane will be forced violently against their seat belts.” By that scale, the worst turbulence I’ve felt could only qualify as light: “slight erratic changes in altitude.” To definitely experience more, I would have to fly in a very small aircraft.，这一点在体育直播中也有详细论述
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