No Plagiarism!RQT8za84wZgQEkBSdsd8posted 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 protection329PENANA9wbYPgRFGd 維尼216.73.216.238ns216.73.216.238da2