milk run

Từ điển Oxford Advanced Learner 8th

ˈmilk run 7 [milk run] BrE NAmE noun (informal)
1. countable (especially BrE)a regular journey that is easy and in which nothing unusual happens, especially one by plane
2. the milk runsingular (NAmE)a plane or train journey with stops in many places
•We took the milk run back home.