weightless

音标发音

Sending signals back to base, unmoored and weightless and no longer marking time.
往基地發送信號，起錨了，失重了，也不用計算時間。
Living in a weightless environment does curious things to the body; after all, our entire physiology evolved in the presence of gravity.
在失重的環境下生存會讓我們的身躰産生奇怪的現象；我們的整個生理機能畢竟還是以重力爲前提的。
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.
約翰•格倫，在地球軌道接近失重的環境中無所不喫的第一位美國人,發現喫東西這個任務相儅容易，但是菜單有限。

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.
所以你會短時間的感覺到無重力,或者感到自己變輕了
耶魯公開課 - 基礎物理課程節選
It's wrong to think that you feel weightless because you escaped the pull of gravity.
但是要是你認爲失重,就是不受重力那就大錯特錯了
耶魯公開課 - 基礎物理課程節選

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.