Involving the spreading of something from a concentrated area to a less concentrated one.
The diffusive action of the perfume made the scent fill the room.
香水的擴散作用使香氣瀰漫整個房間。
Spreading out slowly and gently.
The diffusive glow of the sunset painted the sky with warm colors.
日落的擴散光芒用溫暖的色彩描繪了天空。