我们至今仍不知闪电侠世界中多元宇宙的概念。好的，巴里艾伦将在和超女的交叉集中给我们免费上上一节科学课。

　　CBS发布的视频片段展示了一个画面，画面中吉米和温正试图接受一个伫立在他们面前的来自另一个地球的人类的事实。值得庆幸的是，卡拉将有闪电侠来解释这一概念——并且超带视觉感!

　　在这一期的交叉集中我们可以看到巴里帮助卡拉击退恶棍银女妖和电女郎莱思莉·威利斯作为卡拉帮助他重返地球的回报。周一晚8:00，让我们一同期待超女和闪电侠的这次同行吧。

　　New Supergirl-Flash crossover clip explains the multiverse

　　Still don’t really understand the concept of the multiverse in the world of The Flash? Well, Barry Allen (Grant Gustin) offers up a free science lesson in a new clip from the crossover episode with Supergirl. The footage released by CBS shows a scene in which Jimmy (Mehcad Brooks) and Winn (Jeremy Jordan) try to wrap their head around the fact that a being from another Earth is standing in front of them. Thankfully, Kara (Melissa Benoist) has the scarlet speedster to explain the concept — and with visuals!The crossover episode sees Barry helping Kara battle the villains Silver Banshee and Livewire in exchange for help returning to his Earth. The action will commence on Monday at 8 p.m. ET on CBS, and EW has the scoop on everything you need to know beforehand.

（编辑：何莹莹）