Captive balloon
系留气球
📖 牛津释义
captive balloon
balloon held to the ground by a cable 系留气球（用绳索系在地面上的）.
🧩 词语组成解析
balloon
[bə'lun]
n. 气球;热气球;[建]球饰;
vt. 膨胀，涨大;乘热气球飞行;使激增;
adj. 气球状的;（货物等）分量轻而体积大的;（分期付款）最后一笔大数目的;
vi. 乘气球飞行;膨胀;激增;
ball球+oon表名词 → 气球
🗣️ 情景例句
Take it side again .... OK, and switch. Stretch it out.
再侧身……好 左右交替。尽量伸展。
The world is a ladder for some to go up and some down.
人间犹如一架梯，有人缘梯上升，有人顺梯下降。
It was the idea of supporting a craft on a 'pad',or cushion, of low-pressure air, ringed with a curtain of higher pressure air.
用一个气垫来支撑船体，低压空或软垫，软垫周围用高压空气环绕。