duotang

词形变化

duotangs 复数 duotangs

释义与例句

n.
  1. 1.

    A type of folder with three prongs that is commonly used to store papers in elementary school settings.

    加拿大

    One of the students is really messy — his worksheets are always falling out of his duotang.

词源

A genericization of the brand name Duo-Tang.

来源：wiktionary