R 開頭單詞
river crab 河蟹；毛蟹，大牐蟹
river course 河道
river channelization [水利工程]河流渠道化
river channel 河道；河槽；船舶航道
river cascade development [水利工程]河流梯級開發(fā)
river bottom sediment [經(jīng)濟(jì)學(xué)]河底沉積
river bottom protection 護(hù)底
river boat 內(nèi)河船；江船；河船
river biota [經(jīng)濟(jì)學(xué)]河流生物群
river bend [地理] 河灣；[地理] 河曲，河流彎曲
river bed [水文] 河牀
river basin area [地球科學(xué)]流域片區(qū)流域麪積
river basin [水文] 流域
river bank 河岸；河堤
river n. 河，江 n. (River)人名；(英)裡弗