shut something off

Từ điển Oxford Advanced Learner 8th

ˌshut sthˈoff derived
1. to stop a machine, tool, etc. from working
•I wish someone would shut off that car alarm.
2. to stop a supply of gas, water, etc. from flowing or reaching a place
•A valve immediately shuts off the gas when the lid is closed.
Main entry: ↑shut_derived