zhè / jiàn / pī / tuó / shì / yòng / hòu / zhǐ / zhì / chéng / de / zhuān / mén / yòng / lái / zhuāng / xìn / jiàn

这件批橐是用厚纸制成的，专门用来装信件。

This large envelope is made of thick paper and was specially used for holding letters.