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。
The rotation of the pole caused the flag to move back and forth as if rippling in the breeze even though there's no air on the moon.
旗杆的转动使得旗帜前后抖动，看上去好像是被风吹动的，即使月球上没有空气。
Optimism starts with what may be the most extraordinary of human talents: mental time travel, the ability to move back and forth through time and space in one's mind.
乐观主义可能起始于最卓绝的人类天份：精神的时间旅行——在头脑中沿时间和空间向前向后移动的能力。
The rest of us constantly move back and forth in time; we might think of a conversation we had with our spouse yesterday and then immediately of our dinner plans for later tonight.
其他人则持续地在时间中前后移动，我们可能想起昨天和配偶的一次谈话，然后立刻跳到今晚的晚餐计划。
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。
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。
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。
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。
Move back and forth between a decentralised organisation along lines of business and a centralised functional structure.
在按业务划分的分散化组织结构与按职能划分的集中化组织结构间不断切换。
Move back and forth between a decentralised organisation along lines of business and a centralised functional structure.
在按业务划分的分散化组织结构与按职能划分的集中化组织结构间不断切换。
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