Pentadecanoic acid
[化] 十五烷酸
🧩 词语组成解析
🗣️ 情景例句
It's a privilege to know you.
认识您是我的荣幸。
The tongue is not made of steel,yet it cuts.
舌头不是钢，一动把人伤。
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。