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
And thanks for the directions.
谢谢你给我指了路。
The morning sun never lasts a day.
好景不常。
It's Jim. He's in that tree. He can't get down. Can you help him?
是吉姆，他在树上，下不来了，你能帮他吗？