howl

那只狗听到警报声后开始嚎叫。

The dog started to ___howl when it heard the alarm.

他听到好消息时发出一声嚎叫。

He gave a loud ___howl when he heard the good news.

警笛的呼啸声在夜空中回荡。

The ___howl of the siren echoed through the night sky.