| 释义 | 
		riv·er·weed AHD[rĭvʹər-wēd'] D.J.[ˈrɪvəˌwiːd]K.K.[ˈrɪvɚˌwid]n.(名词)- An eastern North American plant(Podostemum ceratophyllum)  having olive-green foliage resembling seaweed and growing on rocks in rapidly flowing streams. 水苔草:北美东部的一种植物(河苔草属 金鱼藻) ,长有类似于海草的橄榄绿叶子,而且生长在流速很快的河流中的岩石上 
 
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