Dilevulinic acid
[化] 联4-氧戊酸; 癸二酮-4,7-二酸
🧩 词语组成解析
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
We would be glad to start business with you.
我们很高兴能与贵公司建立贸易往来。
What a shame!
真是遗憾。