Useful phrasal verbs cut off isolated; unable to be contacted When the storm damaged the phone lines, houses in the area were cut off. The snowstorm cut off contact with the village for several days. step up increase intensity of something We need to step up our efforts to get this project finished on time. Security has been stepped up after a threat was made against the celebrity. go dark stop communications, especially for a long time After the recent advertising scandal, the company went dark and stopped using social media for a while. The secret agent was worried her cover had been blown and went dark. @english4y 92 views10:19
