ㄅㄟˋㄍㄨㄤbèiguāng

  1. 光線不能直接照射光源 葡萄背光通風」、這兒背光清楚」、背光容易」。

to be in a poor light, to do sth with one's back to the light, to stand in one's own light
rétroéclairage