Polyurea
[化] 聚脲
🗣️ 情景例句
having taken so much time away from your busy schedule.
我在你忙碌的生活中用了这么多时间。
May I see your Identification card?
我能看你的身份证吗？
You'll have to wear this hard hat for the tour.
参观时必需戴上这安全帽。