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...他對那些批評他外交政策的人格外心懷怨恨。There was no mistaking the venom in his voice.他的聲音中明顯透著敵意。
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.對蛇毒產生免疫力的玩蛇人
英漢詞典釋義
n.
(某些蛇、蝎子等分泌的)毒液
The snake injects the venom immediately after biting its prey.毒蛇咬住獵物之后馬上注入毒液。The snake uses its venom to stun or paralyze its victims.蛇用其毒液使受害者失去知覺或癱瘓。
憤恨的感情或語言
a look of pure venom一副惡狠狠的表情She said it quickly and with venom.她說話時語速飛快，而且帶著怨恨。She surveyed him coldly with eyes that spat venom.她冷眼打量著他，眼睛冒出怨毒的兇光。
英英詞典釋義
Noun
1. toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)