核心词议：
weightlessness 基本解释
n. 无重状态；失重
速记方法
知识扩展
中文词源
中文词源： weightlessness
精选例句
常见考点例句：
- I had a genuine sense of weightlessness , as if the car had taken flight .
- 我有一种真正的失重感，好像车在飞翔。
- Some 69 miles above earth , in a darkening void , customers will experience a few minutes of weightlessness and gaze out the window at the curvature of their planetary home .
- 直到离地69英里，随着周遭渐渐暗去，飞船进入一片虚空，这时乘客将获得几分钟失重体验并可透过舷窗观赏行星地球的曲线之美。
- Unlike a real spaceflight , mission participants will not be subjected to the debilitating effects of weightlessness and ionizing radiation .
- 与真正的宇宙飞行不同的是，参与该任务的队员不会受到失重和电离辐射的致衰弱的作用。
- Quinn says the sculpture plays on weight ( it is made of heavy metal ) and the illusion of weightlessness .
- 奎恩说这个雕塑利用了重力（其材质是重金属）和失重感的错觉。
- Many observers found fault with the exercise 's lack of realism , saying that the mission could not simulate weightlessness , true danger or the pressure and motivation of a real journey to mars .
- 许多观察者发现这次模拟试验缺乏现实性，说没有模拟失重，真实的危险或压力以及真正火星之旅应有的动机。
