Thymine: Organic compound of the pyrimidine family, often called a Base, consisting of a ring containing Both nitrogen and carbon atoms, and a methyl group.

胸腺嘧啶：一种嘧啶类有机化合物，通常叫做基底，由含有氮和碳原子以及甲基的环形物组成。

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An acid-base reaction is often called a neutralization reaction.

酸碱反应常常被称为中和反应。

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Mr Pujol says that an independent Catalonia - often called the "Germany of Spain", for its high GDP and industrial base - could play a role in turning around the image north Europe has of southern Europe.

BBC: Catalan leaders seek independence vote, legal or not