Polyurea
[化] 聚脲
🗣️ 情景例句
I'm afraid I didn't get on very well in the exam.
我这次考试恐怕不太顺利。
Wise care begets care.
谨慎小心会导致忧心忡忡。
yet we might grudge paying a surgeon a high fee for offering us precisely this service.
但就在外科大夫给我们提供了这种服务后，我们却可能为所支付的昂贵的费用而抱怨。