Polyvinylidene
a. [化]聚偏二乙烯的
🗣️ 情景例句
With great tact, Lily said that it was time for her to go.
莉莉机智地说她该走了。
I expect so.
我料想是这样。
I'm very sorry, sir.You must get off the bus.None of our passengers can change this note.
非常抱歉，先生。您必须下车。我们的乘客中没人能换开这张钞票。