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 certainly a good idea.
这的确是个好主意。
What day is it today?
今天星期几？
and the existence of underwater features of considerable magnitude.
水下特征差异极大。