If it is hard to stop booms once they are in full swing, it is no easier to prevent them from starting in the first place.

如果说，繁荣期一旦开始活跃要叫停决非易事，那么，打从一开始就叫停也没那么容易。

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Yet it is the aged beggar, the splotchy, dirty swing in the park and the edges of cigarettes beside the bus stop that give this city soul.

不过这座城市也有着年迈的乞丐，在公园里污点斑斑的脏秋千，以及公车站牌旁的烟蒂，使得城市有血有肉。

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During the start and stop of the drive shaft, the swing frame of the soft support will have a very obvious vibration.

在传动轴启动和停转的过程中，软支承的摆架会有非常明显的振动，硬支承的摆架则没有这种现象。

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The event had far less energy than if the president was here but it is proof that politics will not stop in the vital swing states away from the storm.

BBC: The hurricane stealing the candidates' thunder

That last swing low could also be used as a stop.

FORBES: Charts Will Shine On Solar

The influence of the two leaders confronted the U.S. secretary of state at every stop of his six-nation swing through the Mideast, Europe and Asia this month his third mission as Washington's top diplomat.

WSJ: Kerry Focuses on Iran, North Korea Leaders