Unsaturated polyester
[化] 不饱和聚酯
🧩 词语组成解析
a. 没有饱和的, 不饱和的
polyester
[['pɔliestə, ˌpɔli'estə]]
n. 聚酯\\n[化] 聚酯
🗣️ 情景例句
Oh, I date occasionally,
哦 ，我偶尔约约会。
I ate eggs for breakfast yesterday.
我昨天早饭吃的是鸡蛋。
Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble.
虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量照片，但他们很快就陷入了困境。