Tridecendioic acid
[化] 十三碳烯二酸
🧩 词语组成解析
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
The first step is the only difficulty.
万事起头难。
I find young people exciting.They have an air of freedom,
我觉得年轻人令人振奋，无拘无束。