(of a plant) to use carbon dioxide from the air, water from the ground, and energy from the light of the sun to produce food for itself and oxygen

The grasses need light to photosynthesize. 草需要光来进行光合作用。

Submerged rice plants need to be able to photosynthesize under water. 沉水的水稻植物需要能够在水中进行光合作用。

Tall blades of grass have more surface area exposed to the sun, enabling them to photosynthesize more sugars and starches for greater root growth. 高大的草叶有更多的表面积暴露在阳光下，使它们能够通过光合作用产生更多的糖和淀粉，以促进根系生长。