Polyuronic acid
[化] 多糖醛酸
🧩 词语组成解析
🗣️ 情景例句
When you go to a new school it takes a while to know the ropes.
到一所学校读书要花一段时间熟悉情况。
Speech is silver (or silvern), silence is golden.
雄辩是银，沈默是金。
Oh, who is this?
噢，这位是谁？