pebble
noun
ˈpebəl
noun
1
a
small
smooth
stone
found
especially
on
a
beach
or
on
the
bottom
of
a
river
卵石，小圆石，砾石
The
beach
was
covered
with
smooth
white
pebbles.
海滩上布满了光滑的白色卵石。
a
pebbly
beach
多卵石的海滩;