Cardboard

来自Big Physics
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wiktionary

ref 

card +‎  board


etymonline

ref

cardboard (n.)

"stiff kind of paper," 1839, from card (n.1) + board (n.1). Figurative sense is from 1893. An earlier word for the same stuff was card paper (1777).

取自“https://www.bigphysics.org/index.php?title=Cardboard&oldid=23356”