Polybutene
n. [高分子] 聚丁烯；聚异丁烯（润滑油）
🔁 扩展释义
【化】 聚丁烯
🗣️ 情景例句
But some things are personal or private, and questions about them are not polite.
但是有些事是私人的，问这些方面的问题是不礼貌的。
Two ears to one tongue, therefore hear twice as much as you speak.
两只耳朵对一舌，故应多听而少说。
The man was ordered to pay $3,500 for the cost of the trip.
此人被责令交付旅费3，500英镑，