写不断铅笔一支顶多支,真是神奇又划算!近期,江苏市场上正在热卖一种写不断铅笔。它与传统铅笔相比,优点如下:1、免刀削,普通的木质铅笔用完一节就要再削才能用,而写不断铅笔免去了刀削的麻烦。2、免按,笔端采用弹力式设置,不用按压,自动出芯。3、写不断,中 Writing a pencil more than one branch, it is really magical and cost-effective! Recently, Jiangsu market is selling a constantly writing pencil. Compared with the traditional pencil, the advantages are as follows: 1, free knife-cut, ordinary wood pencil finished with a section to be cut before they can use, and write pencils removed from the trouble of cutting. 2, free press, pen ends with elastic settings, do not press, automatic core. 3, write constantly, in