来自戴金海的问题
plastic用来做条幅的一种材料Couldyouseehowmuchisabobbinofplasticcanvasithinkthebobbincameswith50to100metersofcanvas.
plastic用来做条幅的一种材料
Couldyouseehowmuchisabobbinofplasticcanvasithinkthebobbincameswith50to100metersofcanvas.

