Final answer:
The underlined word 'enfermero' means 'nurse'.
Step-by-step explanation:
In the sentence 'El enfermero trata de cuidar a los niños bien', the underlined word 'enfermero' means 'nurse'. It refers to a person who provides medical care to others, specifically in this case, to children. The nurse's role is to take care of the children's well-being and provide treatment.
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