phototropic face

例句：

1. 1. Thephototropic face of the plant issensitive to light.
   植物的光敏面对光线很敏感。
2. 2. The phototropic face ofthe plant is used for photosynthesis.
   植物的光敏面用于光合作用。
3. 3.The phototropic face of the plantis responsible for its growth and development.
   植物的光敏面负责其生长和发育。