in matter of

基本解释

In matter of fact, he is no scholar.
事实上他并非学者。
So as not to damage your pride, I should not interfere in the matter of left behind children.
为了不伤害你们的自尊感，我是不应该管留守儿童的事情。
Only superstition is now so well advanced, that men of the first blood are as firm as butchers by occupation: and votary resolution is made equipollent to custom, even in matter of blood.
盟誓底决意也被作成与习惯一样地强，甚至在流血的事件中亦是如此。

The researchers demonstrated how information in pieces of DNA is translated into the thousands of proteins contained in living matter.
It's not a question, in other words, of poetry or of a novel being somehow or another strictly a matter of poetic language.
毫无疑问，诗歌或小说是,诗化语言的严格体现。
耶鲁公开课 - 文学理论导论课程节选
Poetry, in Frost, is action, not a matter, as Wordsworth would say, of emotion recollected in tranquility.
就像华兹华斯说的诗歌对于弗罗斯特是动作不是事情，不是冷静时收集的情绪。
耶鲁公开课 - 现代诗歌课程节选

One way is to become conversant in the subject matter of data science consumers, perhaps even obtaining basic certification in the subject matter area of the consumer.
FORBES: What Data Science Can Do To Become A Classic