Mellophanic acid
[化] 偏苯四酸; 1,2,3,5-苯四甲酸(有时亦指连苯四酸)
🧩 词语组成解析
🗣️ 情景例句
I can't express myself very well in English.
我用英语表达不好。
A burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。
he said. But I don't have many friends, and I don't enjoy myself very much. I don't know why!
他说，“但是我没有很多朋友，我过得不很愉快。我不懂为什么！”