common denominator

n

• ① 【数】公分母
  • the least [lowest] common denominator最小公分母(略作L.C.D., l.c.d.)

• ② 共同特性,共有的特质
  • Dedication to the cause of liberty was the common denominator of the French revolutionaries.献身于自由的宗旨是法国革命者的共同特性。