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溪流.Stream. 2010.03.14
溪流是相對上比河窄，水流速度變化多端的自然淡水水流。一般來說
窄於五米的水流稱為溪流，寬於五米的稱為河流。通常溪流都是在河 流的上游，和山谷一帶，湍流和不平坦的河床亦較常見到。A stream is a flowing body of water with a current, confined ... 
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