Copolyimide
共聚多酰胺
🗣️ 情景例句
What's your problem, Mike?
你现在问题在哪 ，Mike？
The doctor is often more to be feared than the disease.
医生往往比疾病更令人生畏。
We found it difficult to work with him.
我们发现和他共事很难。