n.三葉草；苜蓿
My heart was wrapped up in clover. 我的心用三葉覆蓋草著。
Clover with four leaves bring the feliclty. 四葉的三葉草是幸福！
Clover can be grown as food for cattle. 苜蓿可以用作牛飼料。
n.四葉苜蓿形的立體道路交叉點
adj.形狀似苜蓿葉的
