“使”“叫”“让” Comparison of "使", "叫" and "让"

“把……叫作……”，后面是前面的名称。“把”后面一般跟名词、代词或名词短语。
In the structure "把……叫作……" (...is called…), the latter part is the name of the former part. "把" is usually followed by a noun, pronoun or noun phrase.

“即使”，连词，用在第一个分句里，第二个分句里常用“也”相呼应，一般表示假设的让步关系，也可以表示已经发生或存在的事情。“即使”可以用在第一个分句的主语前，也可以用在主语后。
The conjunction "即使" is used in the first clause, coordinating with "也" in the second clause. The structure usually indicates a hypothetical concession, though it can also indicate something that has already happened or been in existence. "即使" can be used either before or after the subject of the first clause.