The Confederates pushed Pope's army back across the Old Bull Run battlefield.

VOA: special.2009.09.24

She looks up at the telephone wires, and she thinks about all the messages, unintelligible, full of human longing, going back and forth across those wires.

她看着电话线，想着那些莫名其妙的，充满了人类欲望的信息电线上来回踱着步。

耶鲁公开课 - 1945年后的美国小说课程节选

was go to the bridge and walk across the other side and then walk back.

就是到桥上走走，从桥这边走过去再走回来。

鲜为人知的名胜 - SpeakingMax英语口语达人

The guard raced back across the bridge to the railroad station.

VOA: special.2009.06.25

The new quiz comes as this is a subcortical region it's conserved across a mammalian line and probably even further back.

这块区域在皮质下,其中包含了哺乳线,有可能要更加深入。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

So he ordered his men back across the river.

VOA: special.2009.10.15

That's the finger thing from left finger to right finger going back and forth across the board, never touching a number more than once.

在合并时，我的左手手指,和右手手指来回地在黑板上移动，但对每个数字只会碰到一次。

哈佛公开课 - 计算机科学课程节选

"And I have witnessed it across a lot of schools, back to earth movement of organic farming."

VOA: standard.2009.12.08

These proteins have functions that are essential for life of the cell, they transport molecules back and forth across the membrane.

这些蛋白所起的功能,对于细胞生存至关重要,它们负责转运分子通过细胞膜进出细胞

耶鲁公开课 - 生物医学工程探索课程节选

Way back in the swamp are small, floating islands, called hammocks, that one can walk across.

VOA: standard.2010.03.29

I was coming back to New Haven on the train afterwards and I came across this quote.

后来有一次我在坐火车回纽黑文的路上,无意中翻到这么一段话

耶鲁公开课 - 金融市场课程节选

And like millions of people across Spain, she will be back again in the morning looking for a new job and wondering how the situation can improve.

VOA: standard.2010.06.24

N But it's definitely not one and in fact it wasn't N in the case of Selection Sort because remember the algorithm we implemented on stage last week had me going back and forth across the stage selecting on iteration, the smallest person I can find, the smallest number and then putting them into place.

但在选择排序中，肯定不会是1，也不是,注意，上周我们在这儿,实现的算法中，反复地,迭代进行选择，选出最小的数,然后将其放在合适的位置。

哈佛公开课 - 计算机科学课程节选

The explosions appear to have come from inside the buildings, with both the front and back windows of the Ritz Carlton blown off, spreading glass and debris across the street.

VOA: standard.2009.07.17

and Mexican officials. Every day, thousands of people on foot and in vehicles go back and forth across the border here, and millions of dollars worth of products cross the line in trucks and railroad cars.

VOA: standard.2009.04.30