over the border

基本解释

But as refugees flood over the border they tell a different story.
但据穿越边境的难民潮，他们讲述的是不同的故事。
As a result, youngsters began eloping over the border to Gretna Green, where they could get married as long as they were at least 16.
因此，年轻人们开始越过边界，私奔到格雷特纳格林。在那里，他们只需年满16岁就可以结婚。
They have now moved over the border of Afghanistan and they are in Pakistan now, but they continue to have networks with other extremist organizations in that region.
现在他们已经越过阿富汗边界进入巴基斯坦，但他们在该地区保持了与其他极端主义组织建立的网络。

The violence is now spreading over the border to American communities.
You have discribed the border as a safe where things the Taliban just go over there, when they are chased by the Afghan troops and Nato and then they come back then things are a little bit cooler.
您把这个边境线描写成一个关卡,当塔利班分子被阿富汗和北约军队追击时，他们就越过边界线,风声不紧时，他们又通过这个关卡回来。
普林斯顿公开课 - 国际座谈会课程节选
If someone is detained because they appear ill, a medical expert from the Centers for Disease Control and Prevention comes to the scene to check them and, if necessary, send them back over the border.

Regulators are hard pressed to say for sure what has come over the border.
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