This unevenness in damage is because the storm's winds in that area are aligning with the forward motion of the storm (generally northwest), which enhances the wind speeds.

这种破坏上的不平衡是因为该地区暴风的风向与其移动方向一致(一般是西北向)，使风速得到提高。

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Drag hinders the forward motion of the aircraft.

作用于空中的阻力阻碍飞机向前运动。

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Thus it came about that the forward motion of progressivism came to a halt in the early uncertain months of 1939.

这样，在1939年不稳定的头几个月，进步运动的前进步伐停止了。

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Democrats outnumber Republicans in the Senate, but do not possess a majority large enough to block Republicans from using a procedural motion known as a filibuster to prevent a vote from going forward.

VOA: standard.2009.05.31

At that meeting, the shark that is the euro zone will resume its forward motion.

WSJ: Agenda | Irwin Stelzer: Euro-Zone Shark Still Has Its Appetite

As well as their path, their forward motion, intensity and wind speed are all very difficult to predict, NOAA notes.

BBC: What will a hurricane do to the oil spill?

When momentum looses forward motion, oil bulls point to Chinese demand as being the floor under which oil can always stand.

FORBES: Why China Won't Save Oil Prices