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weightless

美['weɪtləs] 英['weɪtləs]

adj. 无重量的；无重力的

副词：weightlessly 名词：weightlessness

近义词：light，aerial，feathery，insubstantial，ethereal，airy，floaty，weighty，

Adjective

having little or no weight or apparent gravitational pull; light;
"floating freely in a weightless condition" "a baby bat...fluffy and weightless as a moth" "jackets made of a weightless polyester fabric"

用作形容词(adj.)

Knowledge is weightless, a treasure you can always carry easily.知识是一种无重的、可以轻易携带的珍宝。
Man is weightless in space.人在太空失重。
We feel weightless when the elevator descends.当电梯下降时，我们会感到失重。

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