Polygalacturonic acid
[化] 聚半乳糖醛酸
🧩 词语组成解析
🗣️ 情景例句
That's it. There.
很好。啊。
Self-confidence is the first requisite to human greatness.
人类的伟大，首要的是要有自信。
They lived by hunting and by gathering roots, nuts and wild fruits.
他们靠狩猎和采集根茎、坚果和野果为生。