white-collar

詳細解釋：

white-col.lar

adj.（形容詞）
Of or relating to workers whose work usually does not involve manual labor and who are often expected to dress with a degree of formality.
白領階層的：屬於或與關於那些工作常不涉及體力勞動且常被要求按一定正式程度穿著的人們