相关单词近义词 watershed 流域, catchment basin 汇水盆地, basin 脸盆, drainage area 流域, catchment area 汇水区；汇水面积...River basin, 流域临近词drainage, drainage bar相似词dragster, drain, drain (sth) away, drainage, drainboard, drained, drainer, draining board, 返回 drainage basin