particles - Can と AND や be used in a sentence for a list of things

I have been reading about using と and や.

Now, I understand the basic idea that や is for a list where the list is not all-inclusive. と on the other hand essentially informs the listener that "only these things are what I mean."

Are there any times where the "and" や and と would both be used in a sentence? Specifically for a list of things?

趣味がスキーやゴルフや英語と日本語の勉強やカラオケです。

as a possible (and poor?) example. If I wanted to say in the example above "My hobbies are skiing, golf, studying English and Japanese, and karaoke."

Answer

Your example sentence I think is a little clumsy, but short answer: yes. と in a case similar to your example would just be a component in one of the noun phrases that makes up your list. For the sentence, however, 趣味はスキーやゴルフ、英語と日本語の勉強、カラオケなどです would be better. Points to take away:

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  趣味は not 趣味が.

  
  


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  When making longer lists of things, Japanese typically works, unsurprisingly perhaps, in the reverse of English, with further conjunctions omitted.