Polyisobutene
聚异丁烯; 聚异丁烯
🗣️ 情景例句
What time is my lunch date with Bill Levine?
我与Bill Levine 约好的中饭时间是几点？
Don't you think you've eaten enough?
你不是吃的很多了吗？
Will it last long?
这会持续很久吗？