Pentanedioic acid
[化] 戊二酸
🧩 词语组成解析
🗣️ 情景例句
and it's not about you. OK.
而且不是关于你的。好吧。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
'Certainly,' the girl said, 'but they're for next Wednesday's performance.
“当然可以，不过这两张票是下星期三的，