to watch someone closely to ensure they do something correctly
ঘনিষ্ঠভাবে নজর রাখা
"The teacher stood over the students during the exam."
"পরীক্ষার সময় শিক্ষক শিক্ষার্থীদের উপর ঘনিষ্ঠভাবে নজর রাখছিলেন।"
to simplify something to its essential points
to remain strong and not give up under pressure or doubt
to relax by doing something enjoyable
to express an opinion based on personal experience
to start working seriously after being distracted
to support friendly nations during difficult times