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1·They may move back and forth between the U.S. and the home country.

他们可能在美国和自己的祖国之间搬来搬去。

2·Our eyes move back and forth very quickly while they are closed.

我们的双眼在关闭时很快地来回移动。

3·Some self sealing argument move back and forth from interesting to false claims.

有些自我封闭式论点来回变化,从有趣的到错误的宣称。

4·Multipolar pump. Polluted water pump. Move back and forth pump and jumping equipment.

可使用在循环水泵、多级泵、污水泵、往复式泵等有鼠动或跳动的设备上。

5·And what happens if you want to move back and forth between a bunch of different letters?

如果你想阅读，不同的书信呢？

6·Use Method: Hold the handle with hands, put the leg on the rolling wheel and move back and forth.

使用方法：手握把手，将腿放在滚轮上前后滚动。

7·Wisdom is the ability to consciously move back and forth between self, other and observer positions.

智慧就是能够在自己、对方及观察者位置不停游走。

8·You can also move back and forth between the pages you have already viewed using the back and Forward buttons.

您还可以通过后退和前进按钮在您已经浏览过的页面间进行前后跳转。

9·When I stood on the bridge, three (up to five) vehicles started to move back and forth in front of me before long.

我站在桥上才一会儿，就有三、五辆车开始在我面前开来开去了。

10·This back-and-forth movement of the disc causes air in front of the receiver to move back and forth in the same way.

这种往返运动使听筒前的空气以同样的方式做往返运动。