Polyurea fibre
[化] 聚尿素纤维
🧩 词语组成解析
[化] 聚脲
fibre
['faibə]
n. 纤维;性格;硬纸板纤维板;
🗣️ 情景例句
Hi. This si Peter from Dr. Alice's office.
嗨，你好，我是埃里斯诊所的彼得。
The first wealth is health.
健康是最重要的财富。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。