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(IP보기클릭)223.39.***.***
(IP보기클릭)59.23.***.***
(IP보기클릭)116.82.***.***
시소 생각해보면 지렛대가 무게로인해서 구부러져서 던진 물체가 위에서 아래로 뚝 떨어질수도 있긴하지 | 24.01.09 18:12 | | |
(IP보기클릭)59.23.***.***
그정도로 무거우면 뿌러지지 않을까? | 24.01.09 18:14 | | |