名詞 common ground:

1. a basis agreed to by all parties for reaching a mutual understanding

1. My father and my new boyfriend have cricket and beer drinking as common ground, so they should get on well with each other.
   我的父親和我的新男朋友有打板球和喝啤酒的共同興趣，因此他們應該可以彼此相處很好。
2. Bob and Frank don't like each other because they have no common ground.
   鮑勃和法蘭克互無好感，因為他們沒有共同觀點。