定义
(the Earth's) gravity: (地球的)重力,地心引力
(the) gravitational (pull): 万有引力,地心(引力)
- "Stay tuned because next we'll ask a goat to explain gravity."
- "I think it's actually the moon's gravitational pull which causes the earth to rotate, but I digress."
进一步了解…
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他们的意见 :
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