Voldemort has threatened to unleash him upon people's sons and daughters; it is a threat that usually produces good results.

伏地魔威胁要把格雷伯克放出去咬人家的小孩，这威胁通常很有效。"

I have such delightful horrors to unleash upon thee.

吾很有兴趣折磨汝。

Because of this the King finally heard what was going on and unleashed his wrath upon Lao Ai.

因此，国王终于听到了事情的经过，并对老艾大发雷霆。