Pentendioic acid
[化] 戊烯二酸
🧩 词语组成解析
🗣️ 情景例句
Please don't tell me.
请先别告诉我。
I haven't the slightest idea what you're talking about.
我一点也不知道你在说些什么。
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。