stentorian

老师洪亮的声音即使在操场另一端也能听得清清楚楚。

The teacher's ___stentorian voice could be heard clearly even at the far end of the playground.

那位歌剧演唱家洪亮的嗓音不用麦克风就充满了整个音乐厅。

The opera singer's ___stentorian voice filled the concert hall without any microphone.

裁判震耳欲聋的哨声立刻让场上争吵的球员安静下来。

The referee's ___stentorian whistle silenced the bickering players on the field.