the even goldbach number偶数goldbach数
even-number formula偶方
even carbon number preference偶碳数优势
even charge number偶电荷数
even prime number偶素数
even n number偶数
even-number compartment双号车厢
even quantum number偶量子数
Ten is an even number.
10是偶数。
参考来源 - L～*谓词逻辑与R