involve:
及物動詞 vt. [W]
1.使卷入,連累;牽涉[(+in/with)]
That's no concern of mine. I'm not involved.
那與我無關,我未卷入。
Don't involve me in your quarrel!
不要把我牽扯進你們的爭吵中!
2.需要,包含,意味著[(+in)][+v-ing]
His work involves occasional journeys.
他的工作偶爾需要出差旅行。
3.使專注,使忙于[(+in)]
He was involved in writing his doctoral dissertation.
他在聚精會神地寫他的博士論文。

stay out of:
遠離；別管
Stay out of this matter, please.
請別管這件事。
Stay out of things that don't concern you.
少管那些與你無關的事。

take classes:
上課
After that they take classes in their major area of study.
學習這些基礎課程后他們主修自己的專業。
I like ikebana very much and I take classes in it.
我很喜歡插花，并且我由參加插花的課程。