河流地貌是河流作用[于地球表面]，[经侵蚀、搬运和堆积过程所形成]的（各种侵蚀、堆积地貌的）总称。
Fluvial landform is the general term（of various types of erosion and accumulation landforms）（produced by fluvial processes）[on the surface of the Earth][through erosion, transport and deposit].
河流作用是地球表面最经常、最活跃的地貌作用，它贯穿于河流地貌的全过程。无论什么样的河流均有侵蚀、搬运和沉积作用，并形成形态各异的地貌类型。
Fluvial processes are the most frequent and active landform processes that exist from beginning to end in the course of fluvial landform production. Any one of streams has the processes of erosion, transport and deposit to produce various types of landforms.
地貌类型中包括侵蚀与堆积地貌两类，前者主要有侵蚀河床、侵蚀阶地、谷地、谷坡；后者含河漫滩、堆积阶地、冲积平原、河口三角洲等。
Landforms are composed of erosion landform and accumulation landform. The former consists of erosion channel bed, erosion channel terrace, valley and slope, while the latter consists of floodplain, accumulation terrace, alluvial plain and estuarine delta.
河流阶地是河流地貌中重要的地貌类型，可以分为侵蚀阶地、堆积阶地、基座阶地和埋藏阶地。 Fluvial terrace is an important type of fluvial landform which is composed of erosion and accumulation terrace, basement terrace, and buried terrace.
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