Polypentamethylene succinate
[化] 聚丁二酸亚戊基酯
🗣️ 情景例句
I'm always in a bad mood on Mondays.
我每个星期一情绪都很低落。
The boss is waiting in his office for us to come and explain why we failed to finish this work on time.
老板在他的办公室里等着我们前去说明未能按期完成这个工作的理由。
I ask for what is mine by law!
我要求得到根据法律属于我的东西。
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