光こう線せんを遮さえぎる

expression, godan verb (-ru)

intercept light; block light

Used when something physically blocks or cuts off light rays, such as an object, a hand, or a cloud.

• 雲くもが太たい陽ようの光こう線せんを遮さえぎった。

  The clouds blocked the sun's rays.

• 手てで光こう線せんを遮さえぎって、目めを守まもった。

  I shielded my eyes by blocking the light with my hand.