Poly(vinyl alcohol)
[化] 聚乙烯醇
🗣️ 情景例句
In every marriage,
婚姻中，
How long are you going to stay here?
你要在这里停留多久？
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。