记忆方法
将“cardboard”想象成一个纸卡片（card）做成的板（board），强调它的纸制和结构特性，以帮助记忆。
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英语词源
- cardboard (n.)
- 1848, from card (n.) + board (n.1). Figurative sense is from 1893. An earlier word for the same stuff was card paper (1777).
权威例句
- 1. Give the cardboard two or three coats of varnish to harden it.
- 在纸板上涂两三层清漆使其变硬。
- 2. Patterson pointed toward a plain cardboard box beneath a long wooden table.
- 帕特森指着长木桌下的一个普通的纸板箱。
- 3. He reached into the cardboard box beside him.
- 他把手伸进身边的纸板盒里。
- 4. I made a full-size cardboard model.
- 我做了一个与原物一样大小的纸板模型。
- 5. It tasted bland and insipid, like warmed cardboard.
- 这吃起来淡而无味，像加热过的纸板。