哈囉,請問有過自由落體經驗的版友
你們是正面向下,還是轉身之後
再掉下去哪種比較沒恐懼感呢?謝謝
這個是學術研究大家不用擔心
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噓
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※ 編輯: tsukiji (125.227.150.189), 02/23/2016 15:13:05
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