You have to pay a price for this half a second of weightlessness.
半秒钟的失重状态，可是有代价的。
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。
Yes, but weightlessness and zero gravity are two different things.
是的，但失重和零重力是两件不同的事。
18 parachute free fall time will have a strong sense of weightlessness?
跳伞的自由落体那段时间会有强烈的失重感吗？
18 parachute free fall time will have a strong sense of weightlessness?
跳伞的自由落体那段时间会有强烈的失重感吗？
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