half shadow

• n. 半影

例句

用作名词 (n.)

1. The limits of the Moon's penumbral shadow define the region of visibility of the partial eclipse.
   半影区的界限详细定义了日偏食的可视区域。
2. The combination dramatizes the reddened moonlight while clearly showing the variation of brightness and color in Earth's not-so-dark shadow across the lunar surface.
   这张生动的合成图清楚的展示了当地球半影扫过月球表面时月亮辉度和颜色的变化。