You can use venom to refer to someone's feelings of great bitterness and anger towards someone.
例句
He reserved particular venom for critics of his foreign policy...他对那些批评他外交政策的人格外心怀怨恨。There was no mistaking the venom in his voice.他的声音中明显透着敌意。
N-MASS
（毒蛇、蜘蛛等生物的）毒液，毒汁
The venom of a creature such as a snake or spider is the poison that it puts into your body when it bites or stings you.
例句
...snake handlers who grow immune to snake venom.对蛇毒产生免疫力的玩蛇人
英汉词典释义
n.
(某些蛇、蝎子等分泌的)毒液
The snake injects the venom immediately after biting its prey.毒蛇咬住猎物之后马上注入毒液。The snake uses its venom to stun or paralyze its victims.蛇用其毒液使受害者失去知觉或瘫痪。
愤恨的感情或语言
a look of pure venom一副恶狠狠的表情She said it quickly and with venom.她说话时语速飞快，而且带着怨恨。She surveyed him coldly with eyes that spat venom.她冷眼打量着他，眼睛冒出怨毒的凶光。
英英词典释义
Noun
1. toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)