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 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

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

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

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

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