smooth pebbles 圆滑的小石子
river pebbles 河床石子
collect pebbles 收集鹅卵石
A: Look at these beautiful pebbles on the shore!
A:看岸边这些漂亮的小石子!
B: Yes, they are very smooth because of the waves.
B:是的,因为海浪的作用,它们非常圆滑。
1) 鹅卵石
2) 小石子
3) 卵石
1. 鹅卵石;小石子
noun
1. Small, smooth stones, especially those found in rivers or on beaches.
Synonym: stones, rocks