Diacetic acid
[化] 双乙酸; 意指
🧩 词语组成解析
🗣️ 情景例句
It's our first date.
这是我们的第一次约会。
Step after step the ladder is ascended.
按部就班，循序渐进。
She put away her compact and smiled kindly.
她放好了粉盒，慈祥地微笑着。