sandpile
n. 沙堆
近义词：sandbox，sandpit，
英英释义
Noun
- a plaything consisting of a pile of sand or a box filled with sand for children to play in
例句
用作名词(n.)
- The size effect can be negative if the sandpile is large enough.边界的影响则会随着沙堆的变大而逐渐消失。