How to make sentences with "laugh"?

1, he told us what happened just now and made everyone laugh their heads off. ,

The students burst into tears, but he was still talking seriously.

Seeing her strange appearance, everyone laughed their heads off.

4. Whenever I see this joke, I will laugh until my stomach hurts.

She smiles like a daffodil.

Detailed explanation of words:

Laugh, make a mistake? (added before the verb) means "negative" and "opposite"; (added before nouns to form verbs) means "get rid of", "get rid of"

Laughter is a peaceful state of mind, a kind inner expression, and it is also the time when endorphin secretion increases in the body. When a person's mood is in a normal state, he will show a peaceful psychological effect in the conversation with others, and show the goodwill communication between people with a smile. Good and evil is the psychological function of human beings and the result of animal evolution. Laugh: Show a happy expression and make a joyful sound.

Yes, used as a connecting complement after a verb or adjective to indicate the effect or degree.