Cpvc
abbr. critical polyvinyl chloride 临界聚氯乙烯
🗣️ 情景例句
Right.
对。
What kind of climate do you have?Is it mild?
你们那里的天气怎么样？它是不冷不热的吗？
When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed.
不久前，一架轻型客机偏离了航线，在山区坠毁，飞行员丧生。