光阶段

例句：

1. 1. The light stage of the plant is crucial for growth.
   植物的光阶段对于生长至关重要。
2. 2. During the dark period, the cells are recharged with energy.
   在黑暗时期，细胞被重新充电。
3. 3. The scientist observed the light stages of the butterfly's life cycle.
   科学家观察了蝴蝶生命周期的光阶段。