No Plagiarism!E2rVmAnP5eLm8i5Hd3VXposted 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 protection318PENANANaMzU1RLgl 維尼216.73.216.146ns216.73.216.146da2