drown out

动词 drown out:

1. make imperceptible

1. The band drowned out our conversation so we sat and said nothing.
   乐队的声音盖过了我们的谈话声音，因此我们只好坐着不说话。
2. His voice was drowned out by the noise made by a gang of rowdies.
   他的声音被一伙流氓的吵闹声给压倒了。