1.The oyster is usually ambisexual. It begins life as a male and becomes a female. It may go back and forth many times.
牡蛎是双性的。它们先由男性变为女性，然后再变回男性，一生中还会来回变好多次呢。
2.It's so much fun to see that object go back and forth in 21 seconds, that I will go. . .
很有趣地发现物体，来回用时是21秒，我将。
3.Among them, there was a CEO of a grand German firm, who always had to go back and forth between Tokyo and Osaka, for business reasons.
客人中有一位德国大公司的总裁，因为业务需要常常往返于东京和大阪之间。
4.Right now I'm in the process of acquiring new clients in the States so I could get a place in New York and then go back and forth.
现在我正在接美国客户的活，所以我可以在纽约找个地方住，然后来来回回的走。
5.They must be able to go back and forth and fit into each household without disruption of educational and social activities.
他们必须学会在不影响学习和社会活动的前提下融入父母新的家庭，保持和父母双方的交流沟通。
6.A great place to view both of these landmarks is Circular Quay, from where ferries go back and forth to the North Shore.
环形码头是观赏这两个地标的一个好地方，从那儿渡轮来回于北岸。
7.went shopping. We would go back and forth, 'What if I get in and you don't? What if.
去购物。我们会来回地去，‘什么如果我进入，而且你没有？什么如果。
8.The Latinos who remain are mostly dual citizens or green-card holders, who go back and forth across the border with relative ease.
留在当地的大部分拉丁美洲人是双城居民或者绿卡持有者，边境来往相对容易。
9.Processing plants can go back and forth between ethanol and crystallised sugar at the flick of a switch, depending on prices.
受价格影响，只要轻弹开关，加工厂就可以在乙醇和结晶糖之间转换。
10.Minmei: Oh, but I thought a compass had two arms that go back and forth.
哦，但我认为指南针应该有两个箭头，一只向前，一只向后。