cloverleaf

1. N-COUNT A cloverleaf is an arrangement of curved roads, resembling a four-leaf clover, that joins two main roads. (道路的)四葉式立躰交叉[美國英語]

The 405-167 motorway interchange is a classic cloverleaf, built in the 1960s. 建於60年代的405-167高速公路交流道是一條經典的四葉式立躰交叉道。