cardboard
/ˈkɑːdbɔːd/noun
mass noun
1- pasteboard or stiff paper纸板; 硬纸：
as modifier a cardboard box.一个硬纸盒。
1.1
- as modifier(of a character in a literary work) lacking depth and realism; artificial（文学作品中的人物）肤浅的, 不真实的; 造作的：
with its superficial, cardboard characters, the novel was typical of her work.
这部小说人物肤浅造作, 是她的典型作品。