一个萝卜一个坑

1. • lit. every turnip to its hole (idiom)
2. • fig. each person has his own position
3. • each to his own
4. • horses for courses
5. • every kettle has its lid

Character by character

• 一(yī)one
• 个(gè)(classifier used before a noun that has no specific classifier)
• 萝(luó)radish
• 卜(bo)surname Bu
• 一(yī)one
• 个(gè)(classifier used before a noun that has no specific classifier)
• 坑(kēng)pit