Corrugated cardboard
波纹纸板，波状纸板
🧩 词语组成解析
corrugated
['kɔrəgeitid]
adj. 波纹的;缩成皱纹的;波纹面的;波纹状的;
v. （使某物）起皱褶(corrugate的过去式和过去分词);
cardboard
['kɑ:dbɔ:d]
n. 卡（片）纸板;纸板箱;硬纸板;
adj. 硬纸板制的;虚假的;
🗣️ 情景例句
When was it built?
它是什么时候建造的？
If the hen does not prate,she will not lay.
不叨叨的母鸡不下蛋。
Hay had been cut and cowsheds had been cleaned.
干草已切好，牛棚也打扫干净了。