Polyurethanes
(polyurethane 的复数) n. 聚氨酯\\n[化] 聚氨基甲酸酯; 聚氨酯
🗣️ 情景例句
I'm sorry but tonight you can borrow the car.
很抱歉现在不行，但是晚上你可以借用这车子。
Which country do you come from?
你从哪一个国家来？
Some friends of my family had this irritating habit.
我家有几个朋友就有这有令人恼火的习惯。