cacophony

放学铃声一响，走廊里立刻充满了孩子们混杂的喧闹声。

As soon as the school bell rang, the hallway was filled with a ___cacophony of children's voices.

风钻声、运货卡车声和出租车鸣笛声混杂在一起，人行道上根本无法交谈。

The ___cacophony of jackhammers, delivery trucks, and honking taxis made conversation on the sidewalk impossible.

乐团的暖场演奏完全是混乱刺耳的音浪，小提琴、铜管和定音鼓相互争夺注意。

The orchestra's warm-up was a complete ___cacophony, with violins, brass, and drums all competing for attention.