Pentene diacid
[化] 戊烯二酸
🧩 词语组成解析
n. [化]戊烯
n. [化]二酸\\na. [化]二价酸的, 二酸的
🗣️ 情景例句
It's getting late.
时间不早了。
He made an important contribution to the company's success.
他对公司的成功做出了重要的贡献。
A girl came in and put an envelope on his desk.
一个姑娘走了进来，把一个信封放在了他桌上。