adj.失重的；无重量的
infernal weightless───地狱般的失重
it's weightless.───它没有重量。
Photons have no mass – they are weightless.───光子没有质量——它们是没有重量的。
Helen described life in a weightless environment during her period in space.───海伦描述了她身处太空时失重状态下的生活。
In Ambreene's awed fingers, the gem seemed warm and alive-and weightless , as if it could float on its own.───在艾布瑞妮充满敬畏的手指间，宝石温暖而有活力，却没有丝毫重量，就像它能自行飘浮。
Due to the facade design, the mosaic of cut stone, a strong and weighty feature, appears weightless as if floating over the parking area.───表皮的设计呈现出切割石头的马赛克排布，形成强烈厚重的特征，但是在这里却显得很轻盈，如同漂浮在停车场之上。
floating freely in a weightless condition; a baby bat. . . fluffy and weightless as a moth; jackets made of a weightless polyester fabric.───在失重的情况下自由的飘浮；刚出生的蝙蝠……长着绒毛、轻得像飞蛾；用轻聚酯布制成的夹克。
As I took her almost weightless body in my hand and carried it out to the meadow, I felt a genuine sadness.───当我把它那几乎没什么份量的躯体放在手心里，带它来到草坪上时，我感到了发自内心的难过。
Space debris, weightless and radiation add to the challenges, and being far from Earth can create a sense of uneasy detachment.───而且太空垃圾、宇宙辐射什么的都会增加项目的难度，除此之外，真正离开地球给人体带来的不适感也是无法模拟的。
In other words, they're basically in a state of constant freefall, and that's why they're weightless .───换句话说，他们基本都处于自由落体状态，那就是为什么他们没有重量。
Photons have no mass—they are weightless.