词汇	地下机场
释义	地下机场 underground airport
随便看	soil conservation benefit soil conservation capacity soil conservation district soil conservation division soil conservation effects soil conservation extension soil conservation forest soil conservation function soil conservation functions soil conservation measure soil conservation measures soil conservation planning soil conservation practice soil conservation ratio soil conservations Soil Conservation Service soil conservation serviceu.s.d.a soil conservation survey Soil conservation tillage soil conservation value soil-conserving soil conserving crop soil-conserving crop soil consistancy soil consistence