专家的讲解英语怎么说

"专家的讲解"可以翻译为"expert explanation"。
expert 是英文单词，意思是"专家"，来自拉丁语 word "expertus" 意思是 "having experience, skilled"
explanation 是英文单词，意思是 "解释, 阐释" 来源于拉丁语 ex "out" + planare "to spread out"
例句:
This expert's explanation on quantum mechanics is very clear and easy to understand.
这位专家关于量子力学的讲解非常清楚易懂。
Please wait for the expert's explanation before asking further questions.
请等待专家的解释后再问其他问题。
We have arranged for an expert in the field to give an explanation of the new technology.
我们已经安排了一位专家来解释新技术。