weightless

音标发音

Sending signals back to base, unmoored and weightless and no longer marking time.
往基地发送信号，起锚了，失重了，也不用计算时间。
Living in a weightless environment does curious things to the body; after all, our entire physiology evolved in the presence of gravity.
在失重的环境下生存会让我们的身体产生奇怪的现象；我们的整个生理机能毕竟还是以重力为前提的。
John Glenn, America's first man to eat anything in the near-weightless environment of Earth orbit, found the task of eating fairly easy, but found the menu to be limited.
约翰•格伦，在地球轨道接近失重的环境中无所不吃的第一位美国人,发现吃东西这个任务相当容易，但是菜单有限。

Glenn's flight plan called for him to spend most of the first orbit getting used to the feeling of being weightless.
So, you will feel weightless for a short time or you'll feel your weight is little.
所以你会短时间的感觉到无重力,或者感到自己变轻了
耶鲁公开课 - 基础物理课程节选
It's wrong to think that you feel weightless because you escaped the pull of gravity.
但是要是你认为失重,就是不受重力那就大错特错了
耶鲁公开课 - 基础物理课程节选

Simultaneously massive and weightless, the structures seem to float above a shallow reflecting pond.
ECONOMIST: Museum architecture

Something that is weightless weighs nothing or seems to weigh nothing.
A person or object is weightless when they are in space and the Earth's gravity does not affect them, so that they float around.