Polyurethanes
(polyurethane 的复数) n. 聚氨酯\\n[化] 聚氨基甲酸酯; 聚氨酯
🗣️ 情景例句
But with only one more year to go, you would be well-advised to finish.
可是只剩下一年了，你要是明智的话就应该学完。
What is learned in the cradle lasts till the grave.
婴孩时期学到的东西，老死不会忘记。
The doctor looked over Mrs Brown very carefully.
医生非常仔细地给布朗夫人作了检查。