x No Plagiarism!Hs2q7pN2RU7J8VIzjYFrposted 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 protection152PENANAVWFy1IXTnw 維尼 15.158.61.16ns 15.158.61.16da2