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goodluck6699
overweight and weightlessness超重和失重
超能力小怪兽
Overweight and Lose weight
yeting1976
Weightlessness
七月的蟹
因为前面的of是介词,介词后面只能用名词或者动名词（doing）的形式.
一碗人间烟火
loss of gravity
Ashtray喵
zero gravityn.（名词）The condition of apparent weightlessness occurring when the centrifugal force on a body exactly counterbalances the gravitational attraction on it.失重：当作用在物体上的离心力与万有引力相抵消时出现的明显无重状态。
carryme2015
careless ,在词典上翻去,学英语重勤奋.
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