Newton's apple tree bound for gravity-free orbit| 牛頓的蘋果樹航向無重力軌道

Newton's apple tree bound for gravity-free orbit| 牛頓的蘋果樹航向無重力軌道: "CAPE CANAVERAL, Fla.
Sir Isaac Newton's famous apple tree is about to leave gravity behind.

艾薩克‧牛頓爵士著名的蘋果樹即將把重力拋在身後。
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