Nonadecendioic acid
[化] 十九碳烯二酸
🧩 词语组成解析
🗣️ 情景例句
Always remember to wash your hands before eating.
用餐前谨记要洗手。
Open your book,please.
请把书打开。
I'd like to look at some sweaters.
我想看看毛衣。