skeleton ·phrase
Definition: the smallest number of people that you need to keep an organization working Level: C1
由于罢工，机场只以最低限度的人员配置运营。
Due to the strike, the airport operated with only a ___skeleton ___crew.
假期期间，医院保持最低限度的员工以处理紧急情况。
During the holiday, the hospital maintains a ___skeleton ___staff to handle emergencies.
每周日，铁路只提供最低限度的服务，班次很少。
On Sundays, the railway runs a ___skeleton ___service with very few trains.