Meaning: This sentence describes the way pebbles are arranged on the bottom of a river, forming a smooth, even surface.
Choice of Words: Pebbles are small, smooth stones. Lined means to form a row or border. Riverbed is the bottom of a river.
Alternative Expressions
Rocks were in the river.
Meaning: This sentence describes a scene where small stones were located in the river.
Choice of Words: The word "rocks" refers to small stones found in nature. "Were" is a past tense form of the verb "to be", indicating that the rocks were present in the river at a specific time in the past. "River" is a body of water that flows through land.
Stones filled the riverbed.
Meaning: This sentence describes a situation where the bottom of the river was completely covered with stones.
Choice of Words: The word "stones" refers to small to medium-sized rocks. "Filled" means that the stones occupied or covered the entire area of the riverbed. "Riverbed" is the bottom of a river.