burn-back

例句：

1. 3.
   在摄影中
2. 1. The fire left a burn-back on the wall.
   火灾在墙上留下了痕迹。
3. 2. After the heat treatment, the metal was cooled down to a low temperature for burn-back.
   热处理后，金属被冷却到低温以进行回火。
4. 3. The photographer decided to take a burn-back shot to avoid exposing the subject to too much light.
   摄影师决定拍摄一张曝光不足的照片以避免过度曝光主体。