Pentendioic acid
[化] 戊烯二酸
🧩 词语组成解析
🗣️ 情景例句
You have to go on television, too.
也应该上电视。
I wonder if it will be too long.
我不知道它是不是会太长。
he always insisted that it should be written out in full.
但他还是坚持要求将信的全文写在信纸上。