direct light的用法和樣例：
例句
- These models apply to the project of measuring attitude that adopts the principle of collimated light.
適用于準直光等形式的測姿方案。 - Direct light is better for reading than diffuse light.
直射光比漫射光更有利于閱讀。 - These direct light downward to reduce light pollution at night.
這些向下的直射光減少了夜間的光污染。
