A part-time job whilst at university can have a positive impact on your life. Whilst at 用法？

A part-time job whilst (you are) at university can have a positive impact on your life.
括號內的字應略去，因為從上下文裡，我們可以明確地知道所指的一定就是聽者或閱讀者的那個you。
whilst是British English用法，通常用在較正式的文章，或用在文言文裡。while是其同義字，較常用。
所以whilst ...at university是分開的關係，後面的at xxx是介系詞片語，本來是提供一個「地點」，但前面加上whilst/while後，就成了一個「時間點」。

whilst-----conjunction,not formal,formal"while"
while--conjunction:----during the time that something is happening.
eg:-They got part-time job "while" studying positively at university..