这种以每秒数百公里的速度旋转的运动，可能会使圆盘上的物质呈现出螺旋形状。
This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a spiral shape.
为了应对逐渐变化的气候，一些物种改变了活动范围，已经迁移到数百公里以外的地方。
In response to these gradual climatic swings, some species have shifted their ranges hundreds of kilometers.
拥有庞大的系统是径流渠道的流动特征——有时总长达数百公里——这些系统由蜿蜒交错的渠道组成，而且这些渠道可能会并入更长更宽的渠道。
These flow features are extensive systems—sometimes hundreds of kilometers in total length—of interconnecting, twisting channels that seem to merge into larger, wider channels.
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