Polyoxamide
聚乙二酰胺
🗣️ 情景例句
It's nice to meet you.
很高兴见到你 。
You can't count on the weather being fine.
你不能指望天晴。
He waved desperately to his companion, who had been water skiing for the last fifteen minutes.
他绝望地向他的伙伴挥手，他的伙伴在过去的15分钟里一直在滑水。