x No Plagiarism!odPj8k54PAnb86rf34pDposted on PENANA 原子筆的筆芯放在水下,筆尖會自動朝下,並且整支筆芯會垂直於地面。8964 copyright protection120PENANAH59K16HhnB 維尼 15.158.61.36ns 15.158.61.36da2