Pipecoline
2-甲基哌啶
🗣️ 情景例句
No, no. I turned it down because of me.
不 ，不。我因为我自己而拒绝了它。
what's his native language?
他的母语是什么？
He opened the book and found a phrase.He read the phrase slowly.
他翻开书找到了一条短语。他缓慢地读着短语。