tormentor

He spat out angry words at his tormentors.

他厉声地咒骂着折磨他的人。

A wasp having severely stung a horse, the latter kicked and pranced about, with an intention of destroying its tormentor .

黄蜂把马狠狠地螫了一下。只见那匹马又踢又蹦，一心要把这只使它痛苦的飞虫消灭掉。

Many people live with a tormentor in their head that continuously attacks and punishes them and drains them of vital energy.

许多人在脑袋的折磨下度过一生，饱受它有增无减的攻击、惩罚，终至耗尽生命的能量。