凸岸 tū'àn convex bank Definitions Defs Origin Strokes Stroke Words Sentences Sents 凸岸 tū'àn convex bank (geography) the part of a river bank that curves outward, usually characterized by a gentle slope and the accumulation of sediment
凸岸 tū'àn convex bank (geography) the part of a river bank that curves outward, usually characterized by a gentle slope and the accumulation of sediment
