例句與造句

1. this is because the key light is at a finite distance, its rays spread and the floor is not evenly illuminated
   這是因為主燈光在無限遠(yuǎn)處，它的射線四處發(fā)散，而不僅僅作用于地板。
2. It's difficult to find finite distance in a sentence. 用finite distance造句挺難的