yī​ge​luó​bo​yī​ge​kēng​r

each to their own

一个萝卜一个坑儿 一個蘿蔔一個坑兒 yī​ge​luó​bo​yī​ge​kēng​r
each to their own
one person for each position; every individual has their own specific task or place; to be conscientious and meticulous in one's work

Cross-References

Has erhua variant