Pva
abbr. 聚醋酸乙烯酯（Polyvinyl Acetate）；聚乙烯醇（Polyvinyl Alcohol）；垂直取向构型（Patterned Vertical Alignment）
🗣️ 情景例句
I hate animals, they smell and they're noisy.
我讨厌动物，它们很臭而且很吵。
We never know the worth (or value) of water till the well is dry.
井枯方知水可贵。
They examined the remain and John got all his money back.
他们鉴定了这些残留物。约翰拿回了他损失的全部数额。