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| English | Chinese |
| alluvial plain A level or gently sloping tract or a slightly undulating land surface produced by extensive deposition of alluvium, usually adjacent to a river that periodically overflows its banks; it may be situated on a flood plain, a delta, or an alluvial fan | 冲积平原 (由冲积土广泛沉淀而产生的水平或微倾斜的大片土地或微起伏的地表，通常与周期性泛滥的江河相连；可能位于洪泛平原、三角洲或冲积扇。) |