Pipecolic acid
[化] 2-哌啶酸; 哌可酸
🧩 词语组成解析
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
Many hands make light work.
人多好做活。
Bad luck! said Mother. It doesn't matter!
“真糟糕！”妈妈说，“没关系！”