Polythioester
[化] 聚硫酯
🗣️ 情景例句
You haven't answered my question.
你还没有回答我的问题呢。
Wisdom is better than gold or silver.
智慧胜过金银。
Thank you,Jim. Please sit down. Could you count them, please, Lucy?
谢谢你吉姆， 坐下吧！你能数数吗？鲁茜？