hot air
短语
FREQ #40569
★☆☆☆☆
热空气
发音
AU
释义与例句
n.
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1.
Air that has been heated, especially so as to function as the lifting agent of a hot-air balloon.
不可数The balloon was equipped with a burner to create hot air for lift.
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2.
Empty, confused, or exaggerated talk lacking meaning or substance; bluster.
习语 不可数