cloverleaf

n. 四叶苜蓿形的立体道路交叉点

clo.ver.leaf

n.（名词）
A highway interchange at which two highways, one crossing over the other, have a series of entrance and exit ramps resembling the outline of a four-leaf clover and enabling vehicles to proceed in either direction on either highway.
苜蓿叶式立体交叉的公路：两条高速公路的立体交叉道，一条穿过另一条，有一系列入口和出口坡道，与四叶苜蓿的外形相似，车辆在两条高速公路上均可驶入任一的两个方向
adj.（形容词）
Resembling or shaped like a leaf of the clover plant.
形状似苜蓿叶的：似苜蓿植物叶或其外形的，或与之相似的