deed

Compared meaning: something a person does; an action (noun).

比较义项：行为，所做的事（名词）。

• act

  General, neutral word for a single action; often paired with 'an act of' plus a quality such as kindness or violence; the action can be minor or major; act can also be used as a verb, unlike deed.

  泛指某个行为或举动，语气中性，常表示某种性质的行为，例如善举、暴行等，行为可大可小；act还可以作动词，而deed没有动词用法。

  Helping the lost tourist find his way was a simple act of kindness.

  帮助迷路的游客找路是一件简单的善举。

• deed 本词

  Notable action, often admirable or heroic; more formal or literary in tone; common in fixed phrases like 'a good deed' or 'a heroic deed'; deed has no verb use.

  指值得注意的行为，往往含有英勇或高尚的意味，语体较正式或书面化，常出现在善举、英勇事迹等固定搭配中；deed没有动词用法。

  Rescuing the child from the river was a truly heroic deed.

  把孩子从河里救出来是一件真正英勇的行为。

Act and deed both mean an action a person does, but deed is more formal and literary, often describing an admirable or heroic action. Act is neutral and common, used with 'an act of' plus a quality like kindness. Deed has no verb use.

这两个词在表示某人所做的行为这一意义上很接近，但deed语气更正式、书面，多指值得称道或英勇的行为；act更中性、口语化，行为可大可小。这里不比较act作动词表示行动、表演的意思，也不比较deed表示契约、地契的意思。