完數
释义
完全數，完滿數
CEFR 等级
C2
精通
该词属于CEFR C2词汇——精通水平。
该词属于CEFR C2词汇——精通水平。
Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free
完全數，完滿數
Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free