any orchid of the genus Disa; beautiful orchids with dark green leaves and usually hooded flowers; much prized as emblematic flowers in their native regions
a combat support agency in the Department of Defense responsible for developing and operating and supporting information systems to serve the needs of the President and the Secretary of Defense and the Joint Chiefs of Staff
造句
【近義詞】
Defense Information Systems Agency
國防信息系統(tǒng)局...