[countable, uncountable]what you see when you cut through the middle of something so that you can see the different layers it is made of; a drawing of this view横截面（图）；剖面（图）；断面（图）
a diagram representing a cross section of the human eye表现人眼的剖面图
in cross sectionthe human eye in cross section人眼的剖面图
[countable, usually singular]a group of people or things that are typical of a larger group典型的一群人（或事物）
a representative cross section of society一群具有代表性的社会典型人物