Pentenedioic acid
[化] 戊烯二酸
🧩 词语组成解析
🗣️ 情景例句
He devoted his life to promoting world peace.
他一生致力于促进世界和平。
A little of every thing is nothing in the main.
每事浅尝辄止，事事都告无成。
Can't you see? They're boxes!
你没看到吗？是一些箱子。