Leaves turn sunlight into plant food.

Leaves turn sunlight into plant food.
Leaves turn sunlight into plant food.

Leaves turn sunlight into plant food.
大意就是：
叶子把阳光转化为植物所需的能量（食物）.
turn...into 把...转换成...

叶子面向阳光，把阳光转化成植物的食物。

植物通过叶子把阳光转化为其所需的“食物”（其实就是光合作用的简单描述）