Cool Invention炫酷发明
2019-09-10
阅读（快乐英语高年级） 2019年2期
This is Power Pen. It is a pen. You can use it to write. But it is not only a pen，it’s also a portable charger（移動电源）. You can use it to charge（给……充电） your phone.
2019-09-10
This is Power Pen. It is a pen. You can use it to write. But it is not only a pen，it’s also a portable charger（移動电源）. You can use it to charge（给……充电） your phone.
