He still has a semester to go, and I tease him that at age 54 he has become a professional student.

还差一个学期他就毕业，我取笑他在54岁时当上了职业大学生。

youdao

Professional student refers to a person who receives multiple degrees and keeps taking courses instead of holding a profession related to the degrees earned.

“专业学生”指的是那种已经拿到好几个学位，依然继续进修深造，而不是去从事和既得学位有关的职业的人。

youdao

Many universities have standardized on Maple for teaching mathematical concepts; the company offers student and professional versions of the software.

许多大学已将Maple作为教授数学概念的标准工具；该公司提供此软件的学生版和专业版。

youdao

Maybe they would, if they knew where I was going to go on so doggedly and do all these publications but being having the kind of mentality I have now that this student might claim that I have more to cover I've never been kicked out of the professional.

不过要是他们知道我会这么坚持不懈地做下去,还发表这么多书的话,当时的人或许会允许我，宽容我,但是如果那个学生带着我刚才的想法，的话,他或许会说,我还有很多要研究的呢,我一直都是专家。

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