Pectosinic acid
[化] 果胶糖酸
🧩 词语组成解析
🗣️ 情景例句
since this is so easy ....
既然那么简单……
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The Scandinavian countries are much admired all over the world for their enlightened social policies.
斯堪的纳维亚半岛各国实行开明的社会政策，受到全世界的推崇。