centrefold
/ˈsentəfəʊld/( <美> centerfold)
noun
1- the two middle pages of a magazine, typically taken up by a single illustration or feature（尤指以单张图片或特写为内容的）杂志中心跨页版面。
1.1
- an illustration on such pages, typically a picture of a naked or scantily clad model杂志中心跨页版面图（尤指全裸或衣着暴露的模特照）。