x No Plagiarism!EJ31Ys1sLl5TNbtKVNrkposted 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 protection196PENANAPy89Hl17Ev 維尼18.216.234.191ns18.216.234.191da2