Senses
一个萝卜一个坑/ 一個蘿蔔一個坑 each to their own
literally "every radish to its hole"; refers to everyone having their own specific position, task, or share, with no room for extras
一个萝卜一个坑/ 一個蘿蔔一個坑 conscientious
to be dependable and serious in one's work; to do things in a down-to-earth manner without being careless
一个萝卜一个坑/ 一個蘿蔔一個坑 stubborn
to be rigid or inflexible in one's thinking