[ ә'riθmәtik ] 柯林斯星级 ★☆☆☆☆ BNC词频 8791 COCA词频 11378 n. 算术, 算术知识 [机] 算术; 算术的 n. the branch of pure mathematics dealing with the theory of numerical calculations 复数: arithmetics 英汉双解字典由 ECDICT 提供