Gattermann-koch reaction - [化] 加特曼-科赫反应(一种甲酰化法)，怎么读怎么用

🧩 词语组成解析

koch

n. 科赫（人名）

reaction [rɪ'ækʃən]

n. 反应;反作用力;反动;保守;

re向后，相反+act行动+ion名词后缀→反动，反应

555-7700. 555 7700

But wouldn't you like to spend an extra day or two here?

你们不愿意在北京多待一天吗？

and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,

所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，

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