It's not polite to laugh ____________ someone who is struggling.

Complete Sentence: It's not polite to laugh at someone who is struggling.

• laugh at someone/something (phrasal verb)

English Meaning: to show that you think someone or something is stupid.
Bangla Meaning: কৌতুক করা; বিদ্রূপ বা উপহাস করা।

Example Sentence:
1. I can't go to work looking like this - everyone will laugh at me.
2. Despite the embarrassing situation, she chose to laugh at herself, turning an awkward moment into a lighthearted one.
3. The kids found it amusing to laugh at the silly faces their teacher made during the school play rehearsal.

Source:
1. Cambridge Dictionary.
2. Accessible Dictionary by Bangla Academy.