stage drop

例句：

1. 1. The stage dropped as the lights went out.
   灯光熄灭时，舞台开始下降。
2. 2. The actor's performance fell short of expectations.
   这位演员的表现没有达到预期。
3. 3. The ship descended into the depths of the ocean.
   这艘船沉入了海底。