詳解在這裏:
https://www.relativelyinteresting.com/how-do-levitating-street-performers-work/?utm_source=org
• 嗯,一目了然。 -老朽- ♂ (0 bytes) () 04/26/2020 postreply 09:21:18
• 哈哈哈,原來是這樣 -PYT2013- ♀ (0 bytes) () 04/26/2020 postreply 10:05:25