That man is the richest whose pleasure are the cheapest.

最容易取得快乐的人是最富有的人。

”

legume  noun

[ˈleɡjuːm] 

an erect or climbing bean or pea plant of the family Leguminosae

豆科作物

例句：

Legumes are an excellent source of protein. 

豆类富含蛋白质。