하나만 뜯어서 이물질 뺀다음에 조립해볼려니까 안되네요ㅠㅠㅠ 혹시 뭐가 잘못됬나해서 다른거 하나 다시빼보니까 똑같아요ㅠㅠ

조립이 되긴하는데 밑부분이 붕뜨네요  망가진건 아니겟죠?ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅌㅌㅋㅋㅋㅋㅋ과제하다가 하나뺏다가 한시간 낭비했어욬ㅋㅋㅋ 뭐가 잘못된걸까요