Sparse matrix
[计] 稀疏矩阵\\n[化] 稀疏矩阵
🧩 词语组成解析
🗣️ 情景例句
People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
He is rich enough who owes nothing.
无债就是富。
Some friends of my family had this irritating habit.
我家有几个朋友就有这有令人恼火的习惯。