Piperinic acid
[化] 胡椒酸
🧩 词语组成解析
🗣️ 情景例句
Study hard kids, your mother and I want you to get into a good college when the time comes.
努力学习，孩子们，你们的妈妈和我希望你们能考上名校。
When did you arrive?
你什么时候到达?
How was your date?
你的约会怎么样？