to behave badly because you are unhappy or upset, often in ways that you are not aware of

These kids act out because their lives are a mess. 这些孩子行为不当是因为他们的生活一团糟。

to perform the actions and say the words of a situation or story

The children acted out their favourite poem. 孩子们把他们最喜爱的诗歌表演出来。

to express your thoughts, emotions, or ideas in your actions

Children's negative feelings often get acted out in bad behaviour. 儿童的消极情绪常会通过不良行为表现出来。