Polyolefine
[化] 聚烯烃
🗣️ 情景例句
I don't feel right about it.
我觉得这样不对。
While we breathe, there is hope.
只要活著，就有希望。
The Great St.Bernard Pass connects Switzerland to Italy.
圣伯纳德大山口连接着瑞士与意大利，