sediment carring estuary

例句：

1. 1. The river flows through a valley with a lot of sediment deposited there.
   这条河流经一个有很多沉积物的山谷。
2. 2. Sedimentary rocks are formed by the accumulation of sediment over long periods of time.
   沉积岩是由长时间积累的沉积物形成的。
3. 3. The beach is covered in sand and silt, which is typical for coastal areas.
   海滩上覆盖着沙和淤泥，这是沿海地区的典型特征。