glass ceiling
noun [ C usually singular ] uk/ˌɡlɑːs ˈsiː.lɪŋ/ us/ˌɡlæs ˈsiː.lɪŋ/
无形限制，无形顶障（通常指职务晋升中无法逾越的限制）
a point after which you cannot go any further, usually in improving your position at work
Various reasons are given for the apparent glass ceiling women hit in many professions. 显然，在很多行业中女性的升迁都受到无形的限制，对此人们给出了不同的解释。