CNN news 2010-07-22 加文本

1.Three coaches flung off the tracks by the force of the impact alone; one of those hit an overpass that was above the tracks.

flung off冲下，甩下

例句：fragment of metal or other debris may be flung off the wheel.
      金属碎片和其他残骸可能被轮子甩出来。

      I flung off my attacker，only to see Sam rolling across the floor.
      我打倒了袭击者，却看见萨姆从地上滚过去。

2.you are directed to marshal resources, quickly investigate and report findings to the government in no more than four hours.

no more than不过；仅仅；至多，不超过

例句：I had estimated spending no more than $300 but in the end I spent a lot more.
      我估计不会花费超过300美元，但是我支付的真实数额却高得多。