having little or no weight or apparent gravitational pull; light
weightless例句
Man is weightless in space.
人在太空失重。
weightless详细解释
weight.less adj.（形容词）Having little or no weight.不重的，没有重量的Not experiencing the effects of gravity; being in a state of free fall.失重的：没有经受重力作用的；在自由下落的状态中的 【引伸】 weight.lessly adv.（副词）weight.lessness n.（名词）
