overhead aerial unpractical built on stilts be without foundations make sb. a mere figurehead
The bamboo huts here are all built on stilts.
这里的竹楼都是架空的。
—— 给力词典精选These were no castles in the air.
而他这理想未必完全是架空的。
—— 给力词典精选Soaring birds and gliding wings were keys to the design of the first successful human - powered aircraft.
翱翔着的飞鸟和滑翔用的伞翼,是这架空前成功的人力飞机设计之关键。
—— 辞典例句The Voltage Surge Induced by HEMP on Overhead Power Lines.
HEMP在架空线上感应的过电压。
—— 给力词典精选The trolley bus picks up current from an overhead wire.
无轨电车的电能是通过架空线供给的。
—— 给力词典精选