x No Plagiarism!G3BNNndgDxnPWrimX6efposted 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 protection199PENANA7m9p9ilBlB 維尼18.116.69.162ns18.116.69.162da2