Pectinic acid
[化] 果胶酯酸
🧩 词语组成解析
🗣️ 情景例句
Keith and I are through.
基思和我已经不再来往了。
Will you please call me back?
请你回我一个电话好吗？
It's supposed to start at 6:30 sharp, but I doubt it will.
应该是六点半整的，但是我觉得够呛。