Meeting such a great partner is like finding a four-leaf clover.

four-leaf 是由 four（数字"四"）和 leaf（"叶子"）组成的复合形容词。clover 指"三叶草"，通常每株只有三片叶子，而 four-leaf clover 指罕见的"四叶草"，在西方文化中被视为幸运的象征。