【影】fade out

悄悄地离开；慢慢地退出（某一领域、范围）to retreat from

• 从前“一步到位”的心态慢慢淡出。

  The attitude of "finishing in one step" that one had in the past gradually faded.

• 现在，汽灯成了古董，彻底淡出了人们的视线。

  Now, gas lamps have become antiques and have completely faded from view.