gall

Compared meaning: a feeling of anger or bitterness (noun).

比较义项：怨恨、不满情绪（名词）。

• resentment

  A lasting, often deep feeling of anger or bitterness caused by unfair treatment; neutral register, common in describing ongoing relationships or grievances.

  指因遭受不公对待而产生的一种持久、较深的愤怒或怨恨情绪；语气中性，常用于描述持续存在的关系或积怨。

  He still feels resentment toward his brother after their argument.

  那次争吵之后，他对哥哥仍然心怀怨恨。

• gall 本词

  A sharp, bitter feeling of resentment, often more sudden or pointed than resentment; less common alone in everyday speech, and frequently appears in the idiom have the gall (to do something), which is not the sense compared here.

  指一种尖锐、苦涩的怨气，往往比 resentment 更突然或更具针对性；单独使用时在日常口语中较少见，常出现在习语 have the gall（厚颜无耻地做某事）中，但那层含义这里不作比较。

  There was real gall in her voice when she talked about being passed over for the promotion.

  她谈到自己没能获得晋升时，语气里透着真切的怨气。

Both words describe a negative feeling from unfair treatment. Resentment is a lasting, deep anger or bitterness, fairly formal. Gall is a sharper, more sudden bitterness, less common alone; it often appears in the idiom 'have the gall', meaning to act shamelessly, not compared here.

两个词都表示因受到不公对待而产生的负面情绪，但 resentment 是持续、深层的怨恨，语气较为正式、中性；gall 则强调因不满或委屈而生的一股怨气，且常见于 have the gall to do sth. 这一固定搭配中，此时意为“厚颜无耻地做某事”，并不直接翻译为“怨气”，这层用法这里不作比较。