But it also occurs in tea, chocolate, kola nuts, guarana seeds and even the flowers of citrus plants.

但它也存在于茶、巧、乐果、瓜拉那种子，甚至是柑橘类植物花朵中。

By the late 19th century, kola nuts were being shipped by the tonne to Europe and the US.

到 19 世纪末，乐果被成吨地运往欧洲和美国。

Historian Paul Lovejoy relates that the cultivation of kola nuts in West Africa is hundreds of years old.

历史学家保罗·洛夫乔伊说，在西非，种植乐果已有数百年历史。

But the other half of the name presents another ingredient, less infamous, perhaps, but also strangely potent: the kola nut.

不过，这个饮料名一半代表一种成分，或许不那么臭名昭著，但却出奇地有影响：乐果。

Women have traditionally been forbidden from operating marionettes, or even making them, a craft that entails complex rituals, conducted under cover of night and involving kola nuts and roosters.

传统上，女性不允许操作木偶，甚至制作也不被允许，制作包含复杂工艺，要在夜幕掩护下，原料涉及乐果和公鸡。