This is the 3206th most frequent Catalan word.
requereixen
"Requereixen" means "they require."
In this sentence, 'requereixen' is used to indicate that the tasks demand or need concentration to be accomplished successfully.
Aquestes tasques requereixen molta concentració.
These tasks require a lot of concentration.
Here, 'requereixen' conveys the necessity or need expressed by the students regarding time for procedural preparation.
Els estudiants requereixen més temps per preparar-se per l'examen.
The students require more time to prepare for the exam.
In this example, 'requereixen' is employed to express the essential or fundamental demand for stable funding to carry out the research projects.