名词

1. 演员（单数形式的actor通常指男演员，但有些女演员喜欢被称为actor而不是actress)
An actor is someone whose job is acting in plays or films. 'Actor' in the singular usually refers to a man, but some women who act prefer to be called 'actors' rather than 'actresses'.

1. a theatrical performer

Synonym: histrionplayerthespianrole player

2. a person who acts and gets things done

e.g. he's a principal actor in this affair
when you want something done get a doer
he's a miracle worker

Synonym: doerworker