The designer asked us to soften the penumbra around the product photo shadows.

設計師要求我們把產品照片陰影周圍的半影調得柔和一點。

During the solar eclipse tour, guests stood in the penumbra and saw a partial eclipse.

在日食觀光行程中，旅客站在半影區，看到了日偏食。

Please adjust the office lighting so the penumbra on the presentation screen disappears.

請調整辦公室燈光，讓簡報螢幕上的半影消失。