四叶草用英语说是"four-leaf clover"，来源是源自于古代爱尔兰神话，它被认为是一种带有特殊能量的植物，能带来好运。

例句：

I found a four-leaf clover while walking in the park. 我在公园里散步时找到了一片四叶草。

Do you believe that a four-leaf clover can bring good luck? 你相信四叶草能带来好运吗？

I've been looking for a four-leaf clover for hours, but I still haven't found one. 我已经找了几个小时的四叶草了，但是还是没有找到。