Polyuronic acid
[化] 多糖醛酸
🧩 词语组成解析
🗣️ 情景例句
I didn't realize how late is was.
我不知道已经这么晚了。
Let me give you a little friendly advice.
让我给你一些好意的劝告。
I like looking after my sister's baby, but my sister doesn't let me do it.
我喜欢照看我姐姐的孩子，但我姐姐却不让我做这事。