Undecalactone
十一(碳)烷酸内酯
🗣️ 情景例句
I've been thinking.
我一直在考虑。
Please try to focus your attention on the speaker.
请试着把注意力集中于演讲的人。
Really? What's the weather like in Australia now?
真的吗？澳大利亚现在天气怎样？