单词	besieged fortress
释义	besieged fortress 围城
随便看	grounded model grounded negative wire groundedness groundednesses grounded neutral grounded neutral impedor grounded neutral system grounded-neutral system grounded neutral wire grounded noise Grounded-not Operationally Ready Maintenance Grounded-not Operationally Ready Supply grounded on grounded out grounded outlet grounded part grounded parts grounded phase wire grounded plastic drainage pipe grounded plate amplifier grounded-plate amplifier grounded-plate Bartley oscillator grounded-plate circuit grounded pole grounded probe