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
It's a problem, isn't it?
这确实是个问题，不是吗？
He who makes himself a dove is eaten by the hawk.
弱肉强食。
OK. Run with it like this.
带着它这样跑。