Colbac
[荷]科尔巴克（以聚酯纤维为芯耐纶为皮的纺粘型非织造织物）
🗣️ 情景例句
She flunked her English examination.
她的英语考试失败了。
A fall into the pit, a gain in your wit.
吃一堑，长一智。
They must keep their hands behind their backs.
他们得一直将手放在背后。