Pectinic acid
[化] 果胶酯酸
🧩 词语组成解析
🗣️ 情景例句
What a pleasant surprise running into you.
碰见你真是太棒了！
Time marches on.
时光流逝不回头。
He has worked there since it opened in 1989.
从1989年这家工厂开办起，他就在这儿工作。